15138980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{12409}}^1$

素因数の和:12479

約数の個数: 24

約数和(自身を含む): 32315640

約数和(自身を除く): 17176660

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 12409, 24818, 49636, 62045, 124090, 248180, 756949, 1513898, 3027796, 3784745, 7569490, 15138980]

約数ペア:

[(1, 15138980), (2, 7569490), (4, 3784745), (5, 3027796), (10, 1513898), (20, 756949), (61, 248180), (122, 124090), (244, 62045), (305, 49636), (610, 24818), (1220, 12409)]