18040045

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{419}}^1$

素因数の和:612

約数の個数: 16

約数和(自身を含む): 22176000

約数和(自身を除く): 4135955

約数列:

[1, 5, 79, 109, 395, 419, 545, 2095, 8611, 33101, 43055, 45671, 165505, 228355, 3608009, 18040045]

約数ペア:

[(1, 18040045), (5, 3608009), (79, 228355), (109, 165505), (395, 45671), (419, 43055), (545, 33101), (2095, 8611)]