128061775

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{1109}}^1$

素因数の和:1299

約数の個数: 24

約数和(自身を含む): 165168000

約数和(自身を除く): 37106225

約数列:

[1, 5, 25, 31, 149, 155, 745, 775, 1109, 3725, 4619, 5545, 23095, 27725, 34379, 115475, 165241, 171895, 826205, 859475, 4131025, 5122471, 25612355, 128061775]

約数ペア:

[(1, 128061775), (5, 25612355), (25, 5122471), (31, 4131025), (149, 859475), (155, 826205), (745, 171895), (775, 165241), (1109, 115475), (3725, 34379), (4619, 27725), (5545, 23095)]