90008980

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{14197}}^1$

素因数の和:14523

約数の個数: 24

約数和(自身を含む): 189628488

約数和(自身を除く): 99619508

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 6340, 14197, 28394, 56788, 70985, 141970, 283940, 4500449, 9000898, 18001796, 22502245, 45004490, 90008980]

約数ペア:

[(1, 90008980), (2, 45004490), (4, 22502245), (5, 18001796), (10, 9000898), (20, 4500449), (317, 283940), (634, 141970), (1268, 70985), (1585, 56788), (3170, 28394), (6340, 14197)]