20018665

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1\times {\mathrm{449}}^1$

素因数の和:732

約数の個数: 16

約数和(自身を含む): 24829200

約数和(自身を除く): 4810535

約数列:

[1, 5, 37, 185, 241, 449, 1205, 2245, 8917, 16613, 44585, 83065, 108209, 541045, 4003733, 20018665]

約数ペア:

[(1, 20018665), (5, 4003733), (37, 541045), (185, 108209), (241, 83065), (449, 44585), (1205, 16613), (2245, 8917)]