78895240

素因数分解:

$2^3\times 5^1\times {\mathrm{1972381}}^1$

素因数の和:1972392

約数の個数: 16

約数和(自身を含む): 177514380

約数和(自身を除く): 98619140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1972381, 3944762, 7889524, 9861905, 15779048, 19723810, 39447620, 78895240]

約数ペア:

[(1, 78895240), (2, 39447620), (4, 19723810), (5, 15779048), (8, 9861905), (10, 7889524), (20, 3944762), (40, 1972381)]