128025820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:395

約数の個数: 96

約数和(自身を含む): 307077120

約数和(自身を除く): 179051300

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 79, 92, 115, 130, 158, 230, 260, 271, 299, 316, 395, 460, 542, 598, 790, 1027, 1084, 1196, 1355, 1495, 1580, 1817, 2054, 2710, 2990, 3523, 3634, 4108, 5135, 5420, 5980, 6233, 7046, 7268, 9085, 10270, 12466, 14092, 17615, 18170, 20540, 21409, 23621, 24932, 31165, 35230, 36340, 42818, 47242, 62330, 70460, 81029, 85636, 94484, 107045, 118105, 124660, 162058, 214090, 236210, 278317, 324116, 405145, 428180, 472420, 492407, 556634, 810290, 984814, 1113268, 1391585, 1620580, 1969628, 2462035, 2783170, 4924070, 5566340, 6401291, 9848140, 12802582, 25605164, 32006455, 64012910, 128025820]

約数ペア:

[(1, 128025820), (2, 64012910), (4, 32006455), (5, 25605164), (10, 12802582), (13, 9848140), (20, 6401291), (23, 5566340), (26, 4924070), (46, 2783170), (52, 2462035), (65, 1969628), (79, 1620580), (92, 1391585), (115, 1113268), (130, 984814), (158, 810290), (230, 556634), (260, 492407), (271, 472420), (299, 428180), (316, 405145), (395, 324116), (460, 278317), (542, 236210), (598, 214090), (790, 162058), (1027, 124660), (1084, 118105), (1196, 107045), (1355, 94484), (1495, 85636), (1580, 81029), (1817, 70460), (2054, 62330), (2710, 47242), (2990, 42818), (3523, 36340), (3634, 35230), (4108, 31165), (5135, 24932), (5420, 23621), (5980, 21409), (6233, 20540), (7046, 18170), (7268, 17615), (9085, 14092), (10270, 12466)]