318708804980

素因数分解:

$2^2\times 5^1\times {\mathrm{15935440249}}^1$

素因数の和:15935440258

約数の個数: 12

約数和(自身を含む): 669288490500

約数和(自身を除く): 350579685520

約数列:

[1, 2, 4, 5, 10, 20, 15935440249, 31870880498, 63741760996, 79677201245, 159354402490, 318708804980]

約数ペア:

[(1, 318708804980), (2, 159354402490), (4, 79677201245), (5, 63741760996), (10, 31870880498), (20, 15935440249)]