12641360

素因数分解:

$2^4\times 5^1\times {\mathrm{158017}}^1$

素因数の和:158030

約数の個数: 20

約数和(自身を含む): 29391348

約数和(自身を除く): 16749988

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 158017, 316034, 632068, 790085, 1264136, 1580170, 2528272, 3160340, 6320680, 12641360]

約数ペア:

[(1, 12641360), (2, 6320680), (4, 3160340), (5, 2528272), (8, 1580170), (10, 1264136), (16, 790085), (20, 632068), (40, 316034), (80, 158017)]