20659940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147571}}^1$

素因数の和:147587

約数の個数: 24

約数和(自身を含む): 49584192

約数和(自身を除く): 28924252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147571, 295142, 590284, 737855, 1032997, 1475710, 2065994, 2951420, 4131988, 5164985, 10329970, 20659940]

約数ペア:

[(1, 20659940), (2, 10329970), (4, 5164985), (5, 4131988), (7, 2951420), (10, 2065994), (14, 1475710), (20, 1032997), (28, 737855), (35, 590284), (70, 295142), (140, 147571)]