20497450

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{3761}}^1$

素因数の和:3882

約数の個数: 24

約数和(自身を含む): 38485260

約数和(自身を除く): 17987810

約数列:

[1, 2, 5, 10, 25, 50, 109, 218, 545, 1090, 2725, 3761, 5450, 7522, 18805, 37610, 94025, 188050, 409949, 819898, 2049745, 4099490, 10248725, 20497450]

約数ペア:

[(1, 20497450), (2, 10248725), (5, 4099490), (10, 2049745), (25, 819898), (50, 409949), (109, 188050), (218, 94025), (545, 37610), (1090, 18805), (2725, 7522), (3761, 5450)]