6617620

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{809}}^1$

素因数の和:1227

約数の個数: 24

約数和(自身を含む): 13948200

約数和(自身を除く): 7330580

約数列:

[1, 2, 4, 5, 10, 20, 409, 809, 818, 1618, 1636, 2045, 3236, 4045, 4090, 8090, 8180, 16180, 330881, 661762, 1323524, 1654405, 3308810, 6617620]

約数ペア:

[(1, 6617620), (2, 3308810), (4, 1654405), (5, 1323524), (10, 661762), (20, 330881), (409, 16180), (809, 8180), (818, 8090), (1618, 4090), (1636, 4045), (2045, 3236)]