879140

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{389}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 1867320

約数和(自身を除く): 988180

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 389, 452, 565, 778, 1130, 1556, 1945, 2260, 3890, 7780, 43957, 87914, 175828, 219785, 439570, 879140]

約数ペア:

[(1, 879140), (2, 439570), (4, 219785), (5, 175828), (10, 87914), (20, 43957), (113, 7780), (226, 3890), (389, 2260), (452, 1945), (565, 1556), (778, 1130)]