72390320

素因数分解:

$2^4\times 5^1\times {\mathrm{904879}}^1$

素因数の和:904892

約数の個数: 20

約数和(自身を含む): 168307680

約数和(自身を除く): 95917360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 904879, 1809758, 3619516, 4524395, 7239032, 9048790, 14478064, 18097580, 36195160, 72390320]

約数ペア:

[(1, 72390320), (2, 36195160), (4, 18097580), (5, 14478064), (8, 9048790), (10, 7239032), (16, 4524395), (20, 3619516), (40, 1809758), (80, 904879)]