20513450

素因数分解:

$2^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{4943}}^1$

素因数の和:5038

約数の個数: 24

約数和(自身を含む): 38622528

約数和(自身を除く): 18109078

約数列:

[1, 2, 5, 10, 25, 50, 83, 166, 415, 830, 2075, 4150, 4943, 9886, 24715, 49430, 123575, 247150, 410269, 820538, 2051345, 4102690, 10256725, 20513450]

約数ペア:

[(1, 20513450), (2, 10256725), (5, 4102690), (10, 2051345), (25, 820538), (50, 410269), (83, 247150), (166, 123575), (415, 49430), (830, 24715), (2075, 9886), (4150, 4943)]