64992160

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21379}}^1$

素因数の和:21413

約数の個数: 48

約数和(自身を含む): 161632800

約数和(自身を除く): 96640640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 21379, 42758, 85516, 106895, 171032, 213790, 342064, 406201, 427580, 684128, 812402, 855160, 1624804, 1710320, 2031005, 3249608, 3420640, 4062010, 6499216, 8124020, 12998432, 16248040, 32496080, 64992160]

約数ペア:

[(1, 64992160), (2, 32496080), (4, 16248040), (5, 12998432), (8, 8124020), (10, 6499216), (16, 4062010), (19, 3420640), (20, 3249608), (32, 2031005), (38, 1710320), (40, 1624804), (76, 855160), (80, 812402), (95, 684128), (152, 427580), (160, 406201), (190, 342064), (304, 213790), (380, 171032), (608, 106895), (760, 85516), (1520, 42758), (3040, 21379)]