87519980

素因数分解:

$2^2\times 5^1\times {\mathrm{1439}}^1\times {\mathrm{3041}}^1$

素因数の和:4489

約数の個数: 24

約数和(自身を含む): 183980160

約数和(自身を除く): 96460180

約数列:

[1, 2, 4, 5, 10, 20, 1439, 2878, 3041, 5756, 6082, 7195, 12164, 14390, 15205, 28780, 30410, 60820, 4375999, 8751998, 17503996, 21879995, 43759990, 87519980]

約数ペア:

[(1, 87519980), (2, 43759990), (4, 21879995), (5, 17503996), (10, 8751998), (20, 4375999), (1439, 60820), (2878, 30410), (3041, 28780), (5756, 15205), (6082, 14390), (7195, 12164)]