1531579920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{490891}}^1$

素因数の和:490920

約数の個数: 80

約数和(自身を含む): 5113131072

約数和(自身を除く): 3581551152

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, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 490891, 981782, 1472673, 1963564, 2454455, 2945346, 3927128, 4908910, 5890692, 6381583, 7363365, 7854256, 9817820, 11781384, 12763166, 14726730, 19144749, 19635640, 23562768, 25526332, 29453460, 31907915, 38289498, 39271280, 51052664, 58906920, 63815830, 76578996, 95723745, 102105328, 117813840, 127631660, 153157992, 191447490, 255263320, 306315984, 382894980, 510526640, 765789960, 1531579920]

約数ペア:

[(1, 1531579920), (2, 765789960), (3, 510526640), (4, 382894980), (5, 306315984), (6, 255263320), (8, 191447490), (10, 153157992), (12, 127631660), (13, 117813840), (15, 102105328), (16, 95723745), (20, 76578996), (24, 63815830), (26, 58906920), (30, 51052664), (39, 39271280), (40, 38289498), (48, 31907915), (52, 29453460), (60, 25526332), (65, 23562768), (78, 19635640), (80, 19144749), (104, 14726730), (120, 12763166), (130, 11781384), (156, 9817820), (195, 7854256), (208, 7363365), (240, 6381583), (260, 5890692), (312, 4908910), (390, 3927128), (520, 2945346), (624, 2454455), (780, 1963564), (1040, 1472673), (1560, 981782), (3120, 490891)]