219777620

素因数分解:

$2^2\times 5^1\times {\mathrm{787}}^1\times {\mathrm{13963}}^1$

素因数の和:14759

約数の個数: 24

約数和(自身を含む): 462152544

約数和(自身を除く): 242374924

約数列:

[1, 2, 4, 5, 10, 20, 787, 1574, 3148, 3935, 7870, 13963, 15740, 27926, 55852, 69815, 139630, 279260, 10988881, 21977762, 43955524, 54944405, 109888810, 219777620]

約数ペア:

[(1, 219777620), (2, 109888810), (4, 54944405), (5, 43955524), (10, 21977762), (20, 10988881), (787, 279260), (1574, 139630), (3148, 69815), (3935, 55852), (7870, 27926), (13963, 15740)]