256708920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2083}}^1$

素因数の和:2189

約数の個数: 128

約数和(自身を含む): 840268800

約数和(自身を除く): 583559880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 79, 104, 120, 130, 156, 158, 195, 237, 260, 312, 316, 390, 395, 474, 520, 632, 780, 790, 948, 1027, 1185, 1560, 1580, 1896, 2054, 2083, 2370, 3081, 3160, 4108, 4166, 4740, 5135, 6162, 6249, 8216, 8332, 9480, 10270, 10415, 12324, 12498, 15405, 16664, 20540, 20830, 24648, 24996, 27079, 30810, 31245, 41080, 41660, 49992, 54158, 61620, 62490, 81237, 83320, 108316, 123240, 124980, 135395, 162474, 164557, 216632, 249960, 270790, 324948, 329114, 406185, 493671, 541580, 649896, 658228, 812370, 822785, 987342, 1083160, 1316456, 1624740, 1645570, 1974684, 2139241, 2468355, 3249480, 3291140, 3949368, 4278482, 4936710, 6417723, 6582280, 8556964, 9873420, 10696205, 12835446, 17113928, 19746840, 21392410, 25670892, 32088615, 42784820, 51341784, 64177230, 85569640, 128354460, 256708920]

約数ペア:

[(1, 256708920), (2, 128354460), (3, 85569640), (4, 64177230), (5, 51341784), (6, 42784820), (8, 32088615), (10, 25670892), (12, 21392410), (13, 19746840), (15, 17113928), (20, 12835446), (24, 10696205), (26, 9873420), (30, 8556964), (39, 6582280), (40, 6417723), (52, 4936710), (60, 4278482), (65, 3949368), (78, 3291140), (79, 3249480), (104, 2468355), (120, 2139241), (130, 1974684), (156, 1645570), (158, 1624740), (195, 1316456), (237, 1083160), (260, 987342), (312, 822785), (316, 812370), (390, 658228), (395, 649896), (474, 541580), (520, 493671), (632, 406185), (780, 329114), (790, 324948), (948, 270790), (1027, 249960), (1185, 216632), (1560, 164557), (1580, 162474), (1896, 135395), (2054, 124980), (2083, 123240), (2370, 108316), (3081, 83320), (3160, 81237), (4108, 62490), (4166, 61620), (4740, 54158), (5135, 49992), (6162, 41660), (6249, 41080), (8216, 31245), (8332, 30810), (9480, 27079), (10270, 24996), (10415, 24648), (12324, 20830), (12498, 20540), (15405, 16664)]