128725175

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{1019}}^1$

素因数の和:1223

約数の個数: 24

約数和(自身を含む): 165941760

約数和(自身を除く): 37216585

約数列:

[1, 5, 25, 31, 155, 163, 775, 815, 1019, 4075, 5053, 5095, 25265, 25475, 31589, 126325, 157945, 166097, 789725, 830485, 4152425, 5149007, 25745035, 128725175]

約数ペア:

[(1, 128725175), (5, 25745035), (25, 5149007), (31, 4152425), (155, 830485), (163, 789725), (775, 166097), (815, 157945), (1019, 126325), (4075, 31589), (5053, 25475), (5095, 25265)]