12912170900

素因数分解:

$2^2\times 5^2\times {\mathrm{409}}^1\times {\mathrm{315701}}^1$

素因数の和:316124

約数の個数: 36

約数和(自身を含む): 28088006940

約数和(自身を除く): 15175836040

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 409, 818, 1636, 2045, 4090, 8180, 10225, 20450, 40900, 315701, 631402, 1262804, 1578505, 3157010, 6314020, 7892525, 15785050, 31570100, 129121709, 258243418, 516486836, 645608545, 1291217090, 2582434180, 3228042725, 6456085450, 12912170900]

約数ペア:

[(1, 12912170900), (2, 6456085450), (4, 3228042725), (5, 2582434180), (10, 1291217090), (20, 645608545), (25, 516486836), (50, 258243418), (100, 129121709), (409, 31570100), (818, 15785050), (1636, 7892525), (2045, 6314020), (4090, 3157010), (8180, 1578505), (10225, 1262804), (20450, 631402), (40900, 315701)]