397707940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2840771}}^1$

素因数の和:2840787

約数の個数: 24

約数和(自身を含む): 954499392

約数和(自身を除く): 556791452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2840771, 5681542, 11363084, 14203855, 19885397, 28407710, 39770794, 56815420, 79541588, 99426985, 198853970, 397707940]

約数ペア:

[(1, 397707940), (2, 198853970), (4, 99426985), (5, 79541588), (7, 56815420), (10, 39770794), (14, 28407710), (20, 19885397), (28, 14203855), (35, 11363084), (70, 5681542), (140, 2840771)]