256221840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1$

素因数の和:414

約数の個数: 320

約数和(自身を含む): 999936000

約数和(自身を除く): 743714160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 23, 24, 28, 30, 35, 38, 40, 42, 46, 48, 56, 57, 60, 69, 70, 76, 80, 84, 92, 95, 105, 112, 114, 115, 120, 133, 138, 140, 152, 161, 168, 184, 190, 210, 228, 230, 240, 266, 276, 280, 285, 304, 322, 336, 345, 349, 368, 380, 399, 420, 437, 456, 460, 483, 532, 552, 560, 570, 644, 665, 690, 698, 760, 798, 805, 840, 874, 912, 920, 966, 1047, 1064, 1104, 1140, 1288, 1311, 1330, 1380, 1396, 1520, 1596, 1610, 1680, 1745, 1748, 1840, 1932, 1995, 2094, 2128, 2185, 2280, 2415, 2443, 2576, 2622, 2660, 2760, 2792, 3059, 3192, 3220, 3490, 3496, 3864, 3990, 4188, 4370, 4560, 4830, 4886, 5235, 5244, 5320, 5520, 5584, 6118, 6384, 6440, 6555, 6631, 6980, 6992, 7329, 7728, 7980, 8027, 8376, 8740, 9177, 9660, 9772, 10470, 10488, 10640, 12215, 12236, 12880, 13110, 13262, 13960, 14658, 15295, 15960, 16054, 16752, 17480, 18354, 19320, 19544, 19893, 20940, 20976, 24081, 24430, 24472, 26220, 26524, 27920, 29316, 30590, 31920, 32108, 33155, 34960, 36645, 36708, 38640, 39088, 39786, 40135, 41880, 45885, 46417, 48162, 48860, 48944, 52440, 53048, 56189, 58632, 61180, 64216, 66310, 73290, 73416, 79572, 80270, 83760, 91770, 92834, 96324, 97720, 99465, 104880, 106096, 112378, 117264, 120405, 122360, 128432, 132620, 139251, 146580, 146832, 152513, 159144, 160540, 168567, 183540, 185668, 192648, 195440, 198930, 224756, 232085, 240810, 244720, 265240, 278502, 280945, 293160, 305026, 318288, 321080, 337134, 367080, 371336, 385296, 397860, 449512, 457539, 464170, 481620, 530480, 557004, 561890, 586320, 610052, 642160, 674268, 696255, 734160, 742672, 762565, 795720, 842835, 899024, 915078, 928340, 963240, 1067591, 1114008, 1123780, 1220104, 1348536, 1392510, 1525130, 1591440, 1685670, 1830156, 1856680, 1926480, 2135182, 2228016, 2247560, 2287695, 2440208, 2697072, 2785020, 3050260, 3202773, 3371340, 3660312, 3713360, 4270364, 4495120, 4575390, 5337955, 5570040, 6100520, 6405546, 6742680, 7320624, 8540728, 9150780, 10675910, 11140080, 12201040, 12811092, 13485360, 16013865, 17081456, 18301560, 21351820, 25622184, 32027730, 36603120, 42703640, 51244368, 64055460, 85407280, 128110920, 256221840]

約数ペア:

[(1, 256221840), (2, 128110920), (3, 85407280), (4, 64055460), (5, 51244368), (6, 42703640), (7, 36603120), (8, 32027730), (10, 25622184), (12, 21351820), (14, 18301560), (15, 17081456), (16, 16013865), (19, 13485360), (20, 12811092), (21, 12201040), (23, 11140080), (24, 10675910), (28, 9150780), (30, 8540728), (35, 7320624), (38, 6742680), (40, 6405546), (42, 6100520), (46, 5570040), (48, 5337955), (56, 4575390), (57, 4495120), (60, 4270364), (69, 3713360), (70, 3660312), (76, 3371340), (80, 3202773), (84, 3050260), (92, 2785020), (95, 2697072), (105, 2440208), (112, 2287695), (114, 2247560), (115, 2228016), (120, 2135182), (133, 1926480), (138, 1856680), (140, 1830156), (152, 1685670), (161, 1591440), (168, 1525130), (184, 1392510), (190, 1348536), (210, 1220104), (228, 1123780), (230, 1114008), (240, 1067591), (266, 963240), (276, 928340), (280, 915078), (285, 899024), (304, 842835), (322, 795720), (336, 762565), (345, 742672), (349, 734160), (368, 696255), (380, 674268), (399, 642160), (420, 610052), (437, 586320), (456, 561890), (460, 557004), (483, 530480), (532, 481620), (552, 464170), (560, 457539), (570, 449512), (644, 397860), (665, 385296), (690, 371336), (698, 367080), (760, 337134), (798, 321080), (805, 318288), (840, 305026), (874, 293160), (912, 280945), (920, 278502), (966, 265240), (1047, 244720), (1064, 240810), (1104, 232085), (1140, 224756), (1288, 198930), (1311, 195440), (1330, 192648), (1380, 185668), (1396, 183540), (1520, 168567), (1596, 160540), (1610, 159144), (1680, 152513), (1745, 146832), (1748, 146580), (1840, 139251), (1932, 132620), (1995, 128432), (2094, 122360), (2128, 120405), (2185, 117264), (2280, 112378), (2415, 106096), (2443, 104880), (2576, 99465), (2622, 97720), (2660, 96324), (2760, 92834), (2792, 91770), (3059, 83760), (3192, 80270), (3220, 79572), (3490, 73416), (3496, 73290), (3864, 66310), (3990, 64216), (4188, 61180), (4370, 58632), (4560, 56189), (4830, 53048), (4886, 52440), (5235, 48944), (5244, 48860), (5320, 48162), (5520, 46417), (5584, 45885), (6118, 41880), (6384, 40135), (6440, 39786), (6555, 39088), (6631, 38640), (6980, 36708), (6992, 36645), (7329, 34960), (7728, 33155), (7980, 32108), (8027, 31920), (8376, 30590), (8740, 29316), (9177, 27920), (9660, 26524), (9772, 26220), (10470, 24472), (10488, 24430), (10640, 24081), (12215, 20976), (12236, 20940), (12880, 19893), (13110, 19544), (13262, 19320), (13960, 18354), (14658, 17480), (15295, 16752), (15960, 16054)]