255720240

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:142

約数の個数: 400

約数和(自身を含む): 979461120

約数和(自身を除く): 723740880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 31, 36, 38, 40, 45, 48, 54, 57, 60, 62, 67, 72, 76, 80, 81, 90, 93, 95, 108, 114, 120, 124, 134, 135, 144, 152, 155, 162, 171, 180, 186, 190, 201, 216, 228, 240, 248, 268, 270, 279, 285, 304, 310, 324, 335, 342, 360, 372, 380, 402, 405, 432, 456, 465, 496, 513, 536, 540, 558, 570, 589, 603, 620, 648, 670, 684, 720, 744, 760, 804, 810, 837, 855, 912, 930, 1005, 1026, 1072, 1080, 1116, 1140, 1178, 1206, 1240, 1273, 1296, 1340, 1368, 1395, 1488, 1520, 1539, 1608, 1620, 1674, 1710, 1767, 1809, 1860, 2010, 2052, 2077, 2160, 2232, 2280, 2356, 2412, 2480, 2511, 2546, 2565, 2680, 2736, 2790, 2945, 3015, 3078, 3216, 3240, 3348, 3420, 3534, 3618, 3720, 3819, 4020, 4104, 4154, 4185, 4464, 4560, 4712, 4824, 5022, 5092, 5130, 5301, 5360, 5427, 5580, 5890, 6030, 6156, 6231, 6365, 6480, 6696, 6840, 7068, 7236, 7440, 7638, 7695, 8040, 8208, 8308, 8370, 8835, 9045, 9424, 9648, 10044, 10184, 10260, 10385, 10602, 10854, 11160, 11457, 11780, 12060, 12312, 12462, 12555, 12730, 13392, 13680, 14136, 14472, 15276, 15390, 15903, 16080, 16616, 16740, 17670, 18090, 18693, 19095, 20088, 20368, 20520, 20770, 21204, 21708, 22320, 22914, 23560, 24120, 24624, 24924, 25110, 25460, 26505, 27135, 28272, 28944, 30552, 30780, 31155, 31806, 33232, 33480, 34371, 35340, 36180, 37386, 38190, 39463, 40176, 41040, 41540, 42408, 43416, 45828, 47120, 47709, 48240, 49848, 50220, 50920, 53010, 54270, 56079, 57285, 61104, 61560, 62310, 63612, 66960, 68742, 70680, 72360, 74772, 76380, 78926, 79515, 83080, 84816, 86832, 91656, 93465, 95418, 99696, 100440, 101840, 103113, 106020, 108540, 112158, 114570, 118389, 123120, 124620, 127224, 137484, 141360, 144720, 149544, 152760, 157852, 159030, 166160, 168237, 171855, 183312, 186930, 190836, 197315, 200880, 206226, 212040, 217080, 224316, 229140, 236778, 238545, 249240, 254448, 274968, 280395, 299088, 305520, 315704, 318060, 336474, 343710, 355167, 373860, 381672, 394630, 412452, 424080, 434160, 448632, 458280, 473556, 477090, 498480, 515565, 549936, 560790, 591945, 631408, 636120, 672948, 687420, 710334, 747720, 763344, 789260, 824904, 841185, 897264, 916560, 947112, 954180, 1031130, 1065501, 1121580, 1183890, 1272240, 1345896, 1374840, 1420668, 1495440, 1578520, 1649808, 1682370, 1775835, 1894224, 1908360, 2062260, 2131002, 2243160, 2367780, 2691792, 2749680, 2841336, 3157040, 3196503, 3364740, 3551670, 3816720, 4124520, 4262004, 4486320, 4735560, 5327505, 5682672, 6393006, 6729480, 7103340, 8249040, 8524008, 9471120, 10655010, 12786012, 13458960, 14206680, 15982515, 17048016, 21310020, 25572024, 28413360, 31965030, 42620040, 51144048, 63930060, 85240080, 127860120, 255720240]

約数ペア:

[(1, 255720240), (2, 127860120), (3, 85240080), (4, 63930060), (5, 51144048), (6, 42620040), (8, 31965030), (9, 28413360), (10, 25572024), (12, 21310020), (15, 17048016), (16, 15982515), (18, 14206680), (19, 13458960), (20, 12786012), (24, 10655010), (27, 9471120), (30, 8524008), (31, 8249040), (36, 7103340), (38, 6729480), (40, 6393006), (45, 5682672), (48, 5327505), (54, 4735560), (57, 4486320), (60, 4262004), (62, 4124520), (67, 3816720), (72, 3551670), (76, 3364740), (80, 3196503), (81, 3157040), (90, 2841336), (93, 2749680), (95, 2691792), (108, 2367780), (114, 2243160), (120, 2131002), (124, 2062260), (134, 1908360), (135, 1894224), (144, 1775835), (152, 1682370), (155, 1649808), (162, 1578520), (171, 1495440), (180, 1420668), (186, 1374840), (190, 1345896), (201, 1272240), (216, 1183890), (228, 1121580), (240, 1065501), (248, 1031130), (268, 954180), (270, 947112), (279, 916560), (285, 897264), (304, 841185), (310, 824904), (324, 789260), (335, 763344), (342, 747720), (360, 710334), (372, 687420), (380, 672948), (402, 636120), (405, 631408), (432, 591945), (456, 560790), (465, 549936), (496, 515565), (513, 498480), (536, 477090), (540, 473556), (558, 458280), (570, 448632), (589, 434160), (603, 424080), (620, 412452), (648, 394630), (670, 381672), (684, 373860), (720, 355167), (744, 343710), (760, 336474), (804, 318060), (810, 315704), (837, 305520), (855, 299088), (912, 280395), (930, 274968), (1005, 254448), (1026, 249240), (1072, 238545), (1080, 236778), (1116, 229140), (1140, 224316), (1178, 217080), (1206, 212040), (1240, 206226), (1273, 200880), (1296, 197315), (1340, 190836), (1368, 186930), (1395, 183312), (1488, 171855), (1520, 168237), (1539, 166160), (1608, 159030), (1620, 157852), (1674, 152760), (1710, 149544), (1767, 144720), (1809, 141360), (1860, 137484), (2010, 127224), (2052, 124620), (2077, 123120), (2160, 118389), (2232, 114570), (2280, 112158), (2356, 108540), (2412, 106020), (2480, 103113), (2511, 101840), (2546, 100440), (2565, 99696), (2680, 95418), (2736, 93465), (2790, 91656), (2945, 86832), (3015, 84816), (3078, 83080), (3216, 79515), (3240, 78926), (3348, 76380), (3420, 74772), (3534, 72360), (3618, 70680), (3720, 68742), (3819, 66960), (4020, 63612), (4104, 62310), (4154, 61560), (4185, 61104), (4464, 57285), (4560, 56079), (4712, 54270), (4824, 53010), (5022, 50920), (5092, 50220), (5130, 49848), (5301, 48240), (5360, 47709), (5427, 47120), (5580, 45828), (5890, 43416), (6030, 42408), (6156, 41540), (6231, 41040), (6365, 40176), (6480, 39463), (6696, 38190), (6840, 37386), (7068, 36180), (7236, 35340), (7440, 34371), (7638, 33480), (7695, 33232), (8040, 31806), (8208, 31155), (8308, 30780), (8370, 30552), (8835, 28944), (9045, 28272), (9424, 27135), (9648, 26505), (10044, 25460), (10184, 25110), (10260, 24924), (10385, 24624), (10602, 24120), (10854, 23560), (11160, 22914), (11457, 22320), (11780, 21708), (12060, 21204), (12312, 20770), (12462, 20520), (12555, 20368), (12730, 20088), (13392, 19095), (13680, 18693), (14136, 18090), (14472, 17670), (15276, 16740), (15390, 16616), (15903, 16080)]