12755920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3889}}^1$

素因数の和:3943

約数の個数: 40

約数和(自身を含む): 30388680

約数和(自身を除く): 17632760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 3889, 7778, 15556, 19445, 31112, 38890, 62224, 77780, 155560, 159449, 311120, 318898, 637796, 797245, 1275592, 1594490, 2551184, 3188980, 6377960, 12755920]

約数ペア:

[(1, 12755920), (2, 6377960), (4, 3188980), (5, 2551184), (8, 1594490), (10, 1275592), (16, 797245), (20, 637796), (40, 318898), (41, 311120), (80, 159449), (82, 155560), (164, 77780), (205, 62224), (328, 38890), (410, 31112), (656, 19445), (820, 15556), (1640, 7778), (3280, 3889)]