80606620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{66071}}^1$

素因数の和:66141

約数の個数: 24

約数和(自身を含む): 172051488

約数和(自身を除く): 91444868

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 66071, 132142, 264284, 330355, 660710, 1321420, 4030331, 8060662, 16121324, 20151655, 40303310, 80606620]

約数ペア:

[(1, 80606620), (2, 40303310), (4, 20151655), (5, 16121324), (10, 8060662), (20, 4030331), (61, 1321420), (122, 660710), (244, 330355), (305, 264284), (610, 132142), (1220, 66071)]