157788640

素因数分解:

$2^5\times 5^1\times {\mathrm{251}}^1\times {\mathrm{3929}}^1$

素因数の和:4195

約数の個数: 48

約数和(自身を含む): 374356080

約数和(自身を除く): 216567440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 251, 502, 1004, 1255, 2008, 2510, 3929, 4016, 5020, 7858, 8032, 10040, 15716, 19645, 20080, 31432, 39290, 40160, 62864, 78580, 125728, 157160, 314320, 628640, 986179, 1972358, 3944716, 4930895, 7889432, 9861790, 15778864, 19723580, 31557728, 39447160, 78894320, 157788640]

約数ペア:

[(1, 157788640), (2, 78894320), (4, 39447160), (5, 31557728), (8, 19723580), (10, 15778864), (16, 9861790), (20, 7889432), (32, 4930895), (40, 3944716), (80, 1972358), (160, 986179), (251, 628640), (502, 314320), (1004, 157160), (1255, 125728), (2008, 78580), (2510, 62864), (3929, 40160), (4016, 39290), (5020, 31432), (7858, 20080), (8032, 19645), (10040, 15716)]