858756860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{41809}}^1$

素因数の和:41910

約数の個数: 48

約数和(自身を含む): 1966742400

約数和(自身を除く): 1107985540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 4108, 5135, 10270, 20540, 41809, 83618, 167236, 209045, 418090, 543517, 836180, 1087034, 2174068, 2717585, 3302911, 5435170, 6605822, 10870340, 13211644, 16514555, 33029110, 42937843, 66058220, 85875686, 171751372, 214689215, 429378430, 858756860]

約数ペア:

[(1, 858756860), (2, 429378430), (4, 214689215), (5, 171751372), (10, 85875686), (13, 66058220), (20, 42937843), (26, 33029110), (52, 16514555), (65, 13211644), (79, 10870340), (130, 6605822), (158, 5435170), (260, 3302911), (316, 2717585), (395, 2174068), (790, 1087034), (1027, 836180), (1580, 543517), (2054, 418090), (4108, 209045), (5135, 167236), (10270, 83618), (20540, 41809)]