20702840

素因数分解:

$2^3\times 5^1\times {\mathrm{517571}}^1$

素因数の和:517582

約数の個数: 16

約数和(自身を含む): 46581480

約数和(自身を除く): 25878640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 517571, 1035142, 2070284, 2587855, 4140568, 5175710, 10351420, 20702840]

約数ペア:

[(1, 20702840), (2, 10351420), (4, 5175710), (5, 4140568), (8, 2587855), (10, 2070284), (20, 1035142), (40, 517571)]