8870980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3191}}^1$

素因数の和:3339

約数の個数: 24

約数和(自身を含む): 18768960

約数和(自身を除く): 9897980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 3191, 6382, 12764, 15955, 31910, 63820, 443549, 887098, 1774196, 2217745, 4435490, 8870980]

約数ペア:

[(1, 8870980), (2, 4435490), (4, 2217745), (5, 1774196), (10, 887098), (20, 443549), (139, 63820), (278, 31910), (556, 15955), (695, 12764), (1390, 6382), (2780, 3191)]