8244080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7927}}^1$

素因数の和:7953

約数の個数: 40

約数和(自身を含む): 20644512

約数和(自身を除く): 12400432

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 7927, 15854, 31708, 39635, 63416, 79270, 103051, 126832, 158540, 206102, 317080, 412204, 515255, 634160, 824408, 1030510, 1648816, 2061020, 4122040, 8244080]

約数ペア:

[(1, 8244080), (2, 4122040), (4, 2061020), (5, 1648816), (8, 1030510), (10, 824408), (13, 634160), (16, 515255), (20, 412204), (26, 317080), (40, 206102), (52, 158540), (65, 126832), (80, 103051), (104, 79270), (130, 63416), (208, 39635), (260, 31708), (520, 15854), (1040, 7927)]