1961020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1381}}^1$

素因数の和:1461

約数の個数: 24

約数和(自身を含む): 4179168

約数和(自身を除く): 2218148

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1381, 1420, 2762, 5524, 6905, 13810, 27620, 98051, 196102, 392204, 490255, 980510, 1961020]

約数ペア:

[(1, 1961020), (2, 980510), (4, 490255), (5, 392204), (10, 196102), (20, 98051), (71, 27620), (142, 13810), (284, 6905), (355, 5524), (710, 2762), (1381, 1420)]