9879940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{70571}}^1$

素因数の和:70587

約数の個数: 24

約数和(自身を含む): 23712192

約数和(自身を除く): 13832252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 70571, 141142, 282284, 352855, 493997, 705710, 987994, 1411420, 1975988, 2469985, 4939970, 9879940]

約数ペア:

[(1, 9879940), (2, 4939970), (4, 2469985), (5, 1975988), (7, 1411420), (10, 987994), (14, 705710), (20, 493997), (28, 352855), (35, 282284), (70, 141142), (140, 70571)]