678737540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2610529}}^1$

素因数の和:2610551

約数の個数: 24

約数和(自身を含む): 1534991640

約数和(自身を除く): 856254100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2610529, 5221058, 10442116, 13052645, 26105290, 33936877, 52210580, 67873754, 135747508, 169684385, 339368770, 678737540]

約数ペア:

[(1, 678737540), (2, 339368770), (4, 169684385), (5, 135747508), (10, 67873754), (13, 52210580), (20, 33936877), (26, 26105290), (52, 13052645), (65, 10442116), (130, 5221058), (260, 2610529)]