1587280

素因数分解:

$2^4\times 5^1\times {\mathrm{19841}}^1$

素因数の和:19854

約数の個数: 20

約数和(自身を含む): 3690612

約数和(自身を除く): 2103332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 19841, 39682, 79364, 99205, 158728, 198410, 317456, 396820, 793640, 1587280]

約数ペア:

[(1, 1587280), (2, 793640), (4, 396820), (5, 317456), (8, 198410), (10, 158728), (16, 99205), (20, 79364), (40, 39682), (80, 19841)]