808065220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1303331}}^1$

素因数の和:1303371

約数の個数: 24

約数和(自身を含む): 1751678208

約数和(自身を除く): 943612988

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1303331, 2606662, 5213324, 6516655, 13033310, 26066620, 40403261, 80806522, 161613044, 202016305, 404032610, 808065220]

約数ペア:

[(1, 808065220), (2, 404032610), (4, 202016305), (5, 161613044), (10, 80806522), (20, 40403261), (31, 26066620), (62, 13033310), (124, 6516655), (155, 5213324), (310, 2606662), (620, 1303331)]