78415160

素因数分解:

$2^3\times 5^1\times {\mathrm{1960379}}^1$

素因数の和:1960390

約数の個数: 16

約数和(自身を含む): 176434200

約数和(自身を除く): 98019040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1960379, 3920758, 7841516, 9801895, 15683032, 19603790, 39207580, 78415160]

約数ペア:

[(1, 78415160), (2, 39207580), (4, 19603790), (5, 15683032), (8, 9801895), (10, 7841516), (20, 3920758), (40, 1960379)]