20163750985

素因数分解:

$5^1\times 7^1\times {\mathrm{28879}}^1\times {\mathrm{19949}}^1$

素因数の和:48840

約数の個数: 16

約数和(自身を含む): 27655488000

約数和(自身を除く): 7491737015

約数列:

[1, 5, 7, 35, 19949, 28879, 99745, 139643, 144395, 202153, 698215, 1010765, 576107171, 2880535855, 4032750197, 20163750985]

約数ペア:

[(1, 20163750985), (5, 4032750197), (7, 2880535855), (35, 576107171), (19949, 1010765), (28879, 698215), (99745, 202153), (139643, 144395)]