65741920

素因数分解:

$2^5\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1637}}^1$

素因数の和:1903

約数の個数: 48

約数和(自身を含む): 156029328

約数和(自身を除く): 90287408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 251, 502, 1004, 1255, 1637, 2008, 2510, 3274, 4016, 5020, 6548, 8032, 8185, 10040, 13096, 16370, 20080, 26192, 32740, 40160, 52384, 65480, 130960, 261920, 410887, 821774, 1643548, 2054435, 3287096, 4108870, 6574192, 8217740, 13148384, 16435480, 32870960, 65741920]

約数ペア:

[(1, 65741920), (2, 32870960), (4, 16435480), (5, 13148384), (8, 8217740), (10, 6574192), (16, 4108870), (20, 3287096), (32, 2054435), (40, 1643548), (80, 821774), (160, 410887), (251, 261920), (502, 130960), (1004, 65480), (1255, 52384), (1637, 40160), (2008, 32740), (2510, 26192), (3274, 20080), (4016, 16370), (5020, 13096), (6548, 10040), (8032, 8185)]