12685840

素因数分解:

$2^4\times 5^1\times {\mathrm{158573}}^1$

素因数の和:158586

約数の個数: 20

約数和(自身を含む): 29494764

約数和(自身を除く): 16808924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 158573, 317146, 634292, 792865, 1268584, 1585730, 2537168, 3171460, 6342920, 12685840]

約数ペア:

[(1, 12685840), (2, 6342920), (4, 3171460), (5, 2537168), (8, 1585730), (10, 1268584), (16, 792865), (20, 634292), (40, 317146), (80, 158573)]