12698240

素因数分解:

$2^7\times 5^1\times {\mathrm{19841}}^1$

素因数の和:19860

約数の個数: 32

約数和(自身を含む): 30358260

約数和(自身を除く): 17660020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19841, 39682, 79364, 99205, 158728, 198410, 317456, 396820, 634912, 793640, 1269824, 1587280, 2539648, 3174560, 6349120, 12698240]

約数ペア:

[(1, 12698240), (2, 6349120), (4, 3174560), (5, 2539648), (8, 1587280), (10, 1269824), (16, 793640), (20, 634912), (32, 396820), (40, 317456), (64, 198410), (80, 158728), (128, 99205), (160, 79364), (320, 39682), (640, 19841)]