12655780

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2999}}^1$

素因数の和:3219

約数の個数: 24

約数和(自身を含む): 26712000

約数和(自身を除く): 14056220

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 2999, 4220, 5998, 11996, 14995, 29990, 59980, 632789, 1265578, 2531156, 3163945, 6327890, 12655780]

約数ペア:

[(1, 12655780), (2, 6327890), (4, 3163945), (5, 2531156), (10, 1265578), (20, 632789), (211, 59980), (422, 29990), (844, 14995), (1055, 11996), (2110, 5998), (2999, 4220)]