256086480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:629

約数の個数: 160

約数和(自身を含む): 861194880

約数和(自身を除く): 605108400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 211, 240, 260, 312, 389, 390, 422, 520, 624, 633, 778, 780, 844, 1040, 1055, 1167, 1266, 1556, 1560, 1688, 1945, 2110, 2334, 2532, 2743, 3112, 3120, 3165, 3376, 3890, 4220, 4668, 5057, 5064, 5486, 5835, 6224, 6330, 7780, 8229, 8440, 9336, 10114, 10128, 10972, 11670, 12660, 13715, 15171, 15560, 16458, 16880, 18672, 20228, 21944, 23340, 25285, 25320, 27430, 30342, 31120, 32916, 40456, 41145, 43888, 46680, 50570, 50640, 54860, 60684, 65832, 75855, 80912, 82079, 82290, 93360, 101140, 109720, 121368, 131664, 151710, 164158, 164580, 202280, 219440, 242736, 246237, 303420, 328316, 329160, 404560, 410395, 492474, 606840, 656632, 658320, 820790, 984948, 1067027, 1213680, 1231185, 1313264, 1641580, 1969896, 2134054, 2462370, 3201081, 3283160, 3939792, 4268108, 4924740, 5335135, 6402162, 6566320, 8536216, 9849480, 10670270, 12804324, 16005405, 17072432, 19698960, 21340540, 25608648, 32010810, 42681080, 51217296, 64021620, 85362160, 128043240, 256086480]

約数ペア:

[(1, 256086480), (2, 128043240), (3, 85362160), (4, 64021620), (5, 51217296), (6, 42681080), (8, 32010810), (10, 25608648), (12, 21340540), (13, 19698960), (15, 17072432), (16, 16005405), (20, 12804324), (24, 10670270), (26, 9849480), (30, 8536216), (39, 6566320), (40, 6402162), (48, 5335135), (52, 4924740), (60, 4268108), (65, 3939792), (78, 3283160), (80, 3201081), (104, 2462370), (120, 2134054), (130, 1969896), (156, 1641580), (195, 1313264), (208, 1231185), (211, 1213680), (240, 1067027), (260, 984948), (312, 820790), (389, 658320), (390, 656632), (422, 606840), (520, 492474), (624, 410395), (633, 404560), (778, 329160), (780, 328316), (844, 303420), (1040, 246237), (1055, 242736), (1167, 219440), (1266, 202280), (1556, 164580), (1560, 164158), (1688, 151710), (1945, 131664), (2110, 121368), (2334, 109720), (2532, 101140), (2743, 93360), (3112, 82290), (3120, 82079), (3165, 80912), (3376, 75855), (3890, 65832), (4220, 60684), (4668, 54860), (5057, 50640), (5064, 50570), (5486, 46680), (5835, 43888), (6224, 41145), (6330, 40456), (7780, 32916), (8229, 31120), (8440, 30342), (9336, 27430), (10114, 25320), (10128, 25285), (10972, 23340), (11670, 21944), (12660, 20228), (13715, 18672), (15171, 16880), (15560, 16458)]