66463420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{37339}}^1$

素因数の和:37437

約数の個数: 24

約数和(自身を含む): 141145200

約数和(自身を除く): 74681780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 37339, 74678, 149356, 186695, 373390, 746780, 3323171, 6646342, 13292684, 16615855, 33231710, 66463420]

約数ペア:

[(1, 66463420), (2, 33231710), (4, 16615855), (5, 13292684), (10, 6646342), (20, 3323171), (89, 746780), (178, 373390), (356, 186695), (445, 149356), (890, 74678), (1780, 37339)]