318419240

素因数分解:

$2^3\times 5^1\times {\mathrm{7960481}}^1$

素因数の和:7960492

約数の個数: 16

約数和(自身を含む): 716443380

約数和(自身を除く): 398024140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7960481, 15920962, 31841924, 39802405, 63683848, 79604810, 159209620, 318419240]

約数ペア:

[(1, 318419240), (2, 159209620), (4, 79604810), (5, 63683848), (8, 39802405), (10, 31841924), (20, 15920962), (40, 7960481)]