13028980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15889}}^1$

素因数の和:15939

約数の個数: 24

約数和(自身を含む): 28029960

約数和(自身を除く): 15000980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 15889, 31778, 63556, 79445, 158890, 317780, 651449, 1302898, 2605796, 3257245, 6514490, 13028980]

約数ペア:

[(1, 13028980), (2, 6514490), (4, 3257245), (5, 2605796), (10, 1302898), (20, 651449), (41, 317780), (82, 158890), (164, 79445), (205, 63556), (410, 31778), (820, 15889)]