31423180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22129}}^1$

素因数の和:22209

約数の個数: 24

約数和(自身を含む): 66921120

約数和(自身を除く): 35497940

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 22129, 44258, 88516, 110645, 221290, 442580, 1571159, 3142318, 6284636, 7855795, 15711590, 31423180]

約数ペア:

[(1, 31423180), (2, 15711590), (4, 7855795), (5, 6284636), (10, 3142318), (20, 1571159), (71, 442580), (142, 221290), (284, 110645), (355, 88516), (710, 44258), (1420, 22129)]