309980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1409}}^1$

素因数の和:1429

約数の個数: 24

約数和(自身を含む): 710640

約数和(自身を除く): 400660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1409, 2818, 5636, 7045, 14090, 15499, 28180, 30998, 61996, 77495, 154990, 309980]

約数ペア:

[(1, 309980), (2, 154990), (4, 77495), (5, 61996), (10, 30998), (11, 28180), (20, 15499), (22, 14090), (44, 7045), (55, 5636), (110, 2818), (220, 1409)]