81115560

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:165

約数の個数: 256

約数和(自身を含む): 293760000

約数和(自身を除く): 212644440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 59, 60, 67, 72, 76, 90, 95, 108, 114, 118, 120, 134, 135, 152, 171, 177, 180, 190, 201, 216, 228, 236, 268, 270, 285, 295, 335, 342, 354, 360, 380, 402, 456, 472, 513, 531, 536, 540, 570, 590, 603, 670, 684, 708, 760, 804, 855, 885, 1005, 1026, 1062, 1080, 1121, 1140, 1180, 1206, 1273, 1340, 1368, 1416, 1593, 1608, 1710, 1770, 1809, 2010, 2052, 2124, 2242, 2280, 2360, 2412, 2546, 2565, 2655, 2680, 3015, 3186, 3363, 3420, 3540, 3618, 3819, 3953, 4020, 4104, 4248, 4484, 4824, 5092, 5130, 5310, 5605, 6030, 6365, 6372, 6726, 6840, 7080, 7236, 7638, 7906, 7965, 8040, 8968, 9045, 10089, 10184, 10260, 10620, 11210, 11457, 11859, 12060, 12730, 12744, 13452, 14472, 15276, 15812, 15930, 16815, 18090, 19095, 19765, 20178, 20520, 21240, 22420, 22914, 23718, 24120, 25460, 26904, 30267, 30552, 31624, 31860, 33630, 34371, 35577, 36180, 38190, 39530, 40356, 44840, 45828, 47436, 50445, 50920, 57285, 59295, 60534, 63720, 67260, 68742, 71154, 72360, 75107, 76380, 79060, 80712, 91656, 94872, 100890, 106731, 114570, 118590, 121068, 134520, 137484, 142308, 150214, 151335, 152760, 158120, 171855, 177885, 201780, 213462, 225321, 229140, 237180, 242136, 274968, 284616, 300428, 302670, 343710, 355770, 375535, 403560, 426924, 450642, 458280, 474360, 533655, 600856, 605340, 675963, 687420, 711540, 751070, 853848, 901284, 1067310, 1126605, 1210680, 1351926, 1374840, 1423080, 1502140, 1802568, 2027889, 2134620, 2253210, 2703852, 3004280, 3379815, 4055778, 4269240, 4506420, 5407704, 6759630, 8111556, 9012840, 10139445, 13519260, 16223112, 20278890, 27038520, 40557780, 81115560]

約数ペア:

[(1, 81115560), (2, 40557780), (3, 27038520), (4, 20278890), (5, 16223112), (6, 13519260), (8, 10139445), (9, 9012840), (10, 8111556), (12, 6759630), (15, 5407704), (18, 4506420), (19, 4269240), (20, 4055778), (24, 3379815), (27, 3004280), (30, 2703852), (36, 2253210), (38, 2134620), (40, 2027889), (45, 1802568), (54, 1502140), (57, 1423080), (59, 1374840), (60, 1351926), (67, 1210680), (72, 1126605), (76, 1067310), (90, 901284), (95, 853848), (108, 751070), (114, 711540), (118, 687420), (120, 675963), (134, 605340), (135, 600856), (152, 533655), (171, 474360), (177, 458280), (180, 450642), (190, 426924), (201, 403560), (216, 375535), (228, 355770), (236, 343710), (268, 302670), (270, 300428), (285, 284616), (295, 274968), (335, 242136), (342, 237180), (354, 229140), (360, 225321), (380, 213462), (402, 201780), (456, 177885), (472, 171855), (513, 158120), (531, 152760), (536, 151335), (540, 150214), (570, 142308), (590, 137484), (603, 134520), (670, 121068), (684, 118590), (708, 114570), (760, 106731), (804, 100890), (855, 94872), (885, 91656), (1005, 80712), (1026, 79060), (1062, 76380), (1080, 75107), (1121, 72360), (1140, 71154), (1180, 68742), (1206, 67260), (1273, 63720), (1340, 60534), (1368, 59295), (1416, 57285), (1593, 50920), (1608, 50445), (1710, 47436), (1770, 45828), (1809, 44840), (2010, 40356), (2052, 39530), (2124, 38190), (2242, 36180), (2280, 35577), (2360, 34371), (2412, 33630), (2546, 31860), (2565, 31624), (2655, 30552), (2680, 30267), (3015, 26904), (3186, 25460), (3363, 24120), (3420, 23718), (3540, 22914), (3618, 22420), (3819, 21240), (3953, 20520), (4020, 20178), (4104, 19765), (4248, 19095), (4484, 18090), (4824, 16815), (5092, 15930), (5130, 15812), (5310, 15276), (5605, 14472), (6030, 13452), (6365, 12744), (6372, 12730), (6726, 12060), (6840, 11859), (7080, 11457), (7236, 11210), (7638, 10620), (7906, 10260), (7965, 10184), (8040, 10089), (8968, 9045)]