79764140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{677}}^1$

素因数の和:866

約数の個数: 48

約数和(自身を含む): 172906272

約数和(自身を除く): 93142132

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 137, 172, 215, 274, 430, 548, 677, 685, 860, 1354, 1370, 2708, 2740, 3385, 5891, 6770, 11782, 13540, 23564, 29111, 29455, 58222, 58910, 92749, 116444, 117820, 145555, 185498, 291110, 370996, 463745, 582220, 927490, 1854980, 3988207, 7976414, 15952828, 19941035, 39882070, 79764140]

約数ペア:

[(1, 79764140), (2, 39882070), (4, 19941035), (5, 15952828), (10, 7976414), (20, 3988207), (43, 1854980), (86, 927490), (137, 582220), (172, 463745), (215, 370996), (274, 291110), (430, 185498), (548, 145555), (677, 117820), (685, 116444), (860, 92749), (1354, 58910), (1370, 58222), (2708, 29455), (2740, 29111), (3385, 23564), (5891, 13540), (6770, 11782)]