2565620

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{787}}^1$

素因数の和:959

約数の個数: 24

約数和(自身を含む): 5427744

約数和(自身を除く): 2862124

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 787, 815, 1574, 1630, 3148, 3260, 3935, 7870, 15740, 128281, 256562, 513124, 641405, 1282810, 2565620]

約数ペア:

[(1, 2565620), (2, 1282810), (4, 641405), (5, 513124), (10, 256562), (20, 128281), (163, 15740), (326, 7870), (652, 3935), (787, 3260), (815, 3148), (1574, 1630)]