39909940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{285071}}^1$

素因数の和:285087

約数の個数: 24

約数和(自身を含む): 95784192

約数和(自身を除く): 55874252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 285071, 570142, 1140284, 1425355, 1995497, 2850710, 3990994, 5701420, 7981988, 9977485, 19954970, 39909940]

約数ペア:

[(1, 39909940), (2, 19954970), (4, 9977485), (5, 7981988), (7, 5701420), (10, 3990994), (14, 2850710), (20, 1995497), (28, 1425355), (35, 1140284), (70, 570142), (140, 285071)]