8342780

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3001}}^1$

素因数の和:3149

約数の個数: 24

約数和(自身を含む): 17651760

約数和(自身を除く): 9308980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 3001, 6002, 12004, 15005, 30010, 60020, 417139, 834278, 1668556, 2085695, 4171390, 8342780]

約数ペア:

[(1, 8342780), (2, 4171390), (4, 2085695), (5, 1668556), (10, 834278), (20, 417139), (139, 60020), (278, 30010), (556, 15005), (695, 12004), (1390, 6002), (2780, 3001)]