20501350

素因数分解:

$2^1\times 5^2\times {\mathrm{521}}^1\times {\mathrm{787}}^1$

素因数の和:1320

約数の個数: 24

約数和(自身を含む): 38254248

約数和(自身を除く): 17752898

約数列:

[1, 2, 5, 10, 25, 50, 521, 787, 1042, 1574, 2605, 3935, 5210, 7870, 13025, 19675, 26050, 39350, 410027, 820054, 2050135, 4100270, 10250675, 20501350]

約数ペア:

[(1, 20501350), (2, 10250675), (5, 4100270), (10, 2050135), (25, 820054), (50, 410027), (521, 39350), (787, 26050), (1042, 19675), (1574, 13025), (2605, 7870), (3935, 5210)]