13204220

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1663}}^1$

素因数の和:2069

約数の個数: 24

約数和(自身を含む): 27815424

約数和(自身を除く): 14611204

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1663, 1985, 3326, 3970, 6652, 7940, 8315, 16630, 33260, 660211, 1320422, 2640844, 3301055, 6602110, 13204220]

約数ペア:

[(1, 13204220), (2, 6602110), (4, 3301055), (5, 2640844), (10, 1320422), (20, 660211), (397, 33260), (794, 16630), (1588, 8315), (1663, 7940), (1985, 6652), (3326, 3970)]