64663960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22769}}^1$

素因数の和:22851

約数の個数: 32

約数和(自身を含む): 147549600

約数和(自身を除く): 82885640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 22769, 45538, 91076, 113845, 182152, 227690, 455380, 910760, 1616599, 3233198, 6466396, 8082995, 12932792, 16165990, 32331980, 64663960]

約数ペア:

[(1, 64663960), (2, 32331980), (4, 16165990), (5, 12932792), (8, 8082995), (10, 6466396), (20, 3233198), (40, 1616599), (71, 910760), (142, 455380), (284, 227690), (355, 182152), (568, 113845), (710, 91076), (1420, 45538), (2840, 22769)]