79077820

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 169279488

約数和(自身を除く): 90201668

約数列:

[1, 2, 4, 5, 10, 20, 127, 163, 191, 254, 326, 382, 508, 635, 652, 764, 815, 955, 1270, 1630, 1910, 2540, 3260, 3820, 20701, 24257, 31133, 41402, 48514, 62266, 82804, 97028, 103505, 121285, 124532, 155665, 207010, 242570, 311330, 414020, 485140, 622660, 3953891, 7907782, 15815564, 19769455, 39538910, 79077820]

約数ペア:

[(1, 79077820), (2, 39538910), (4, 19769455), (5, 15815564), (10, 7907782), (20, 3953891), (127, 622660), (163, 485140), (191, 414020), (254, 311330), (326, 242570), (382, 207010), (508, 155665), (635, 124532), (652, 121285), (764, 103505), (815, 97028), (955, 82804), (1270, 62266), (1630, 48514), (1910, 41402), (2540, 31133), (3260, 24257), (3820, 20701)]