668456125

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{691}}^1$

素因数の和:886

約数の個数: 32

約数和(自身を含む): 854979840

約数和(自身を除く): 186523715

約数列:

[1, 5, 25, 71, 109, 125, 355, 545, 691, 1775, 2725, 3455, 7739, 8875, 13625, 17275, 38695, 49061, 75319, 86375, 193475, 245305, 376595, 967375, 1226525, 1882975, 5347649, 6132625, 9414875, 26738245, 133691225, 668456125]

約数ペア:

[(1, 668456125), (5, 133691225), (25, 26738245), (71, 9414875), (109, 6132625), (125, 5347649), (355, 1882975), (545, 1226525), (691, 967375), (1775, 376595), (2725, 245305), (3455, 193475), (7739, 86375), (8875, 75319), (13625, 49061), (17275, 38695)]