20005725

素因数分解:

$3^1\times 5^2\times {\mathrm{157}}^1\times {\mathrm{1699}}^1$

素因数の和:1869

約数の個数: 24

約数和(自身を含む): 33306400

約数和(自身を除く): 13300675

約数列:

[1, 3, 5, 15, 25, 75, 157, 471, 785, 1699, 2355, 3925, 5097, 8495, 11775, 25485, 42475, 127425, 266743, 800229, 1333715, 4001145, 6668575, 20005725]

約数ペア:

[(1, 20005725), (3, 6668575), (5, 4001145), (15, 1333715), (25, 800229), (75, 266743), (157, 127425), (471, 42475), (785, 25485), (1699, 11775), (2355, 8495), (3925, 5097)]