72413960

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20341}}^1$

素因数の和:20441

約数の個数: 32

約数和(自身を含む): 164770200

約数和(自身を除く): 92356240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 20341, 40682, 81364, 101705, 162728, 203410, 406820, 813640, 1810349, 3620698, 7241396, 9051745, 14482792, 18103490, 36206980, 72413960]

約数ペア:

[(1, 72413960), (2, 36206980), (4, 18103490), (5, 14482792), (8, 9051745), (10, 7241396), (20, 3620698), (40, 1810349), (89, 813640), (178, 406820), (356, 203410), (445, 162728), (712, 101705), (890, 81364), (1780, 40682), (3560, 20341)]