40872460

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19841}}^1$

素因数の和:19953

約数の個数: 24

約数和(自身を含む): 86669856

約数和(自身を除く): 45797396

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 19841, 39682, 79364, 99205, 198410, 396820, 2043623, 4087246, 8174492, 10218115, 20436230, 40872460]

約数ペア:

[(1, 40872460), (2, 20436230), (4, 10218115), (5, 8174492), (10, 4087246), (20, 2043623), (103, 396820), (206, 198410), (412, 99205), (515, 79364), (1030, 39682), (2060, 19841)]