18660260

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{12781}}^1$

素因数の和:12863

約数の個数: 24

約数和(自身を含む): 39726456

約数和(自身を除く): 21066196

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 12781, 25562, 51124, 63905, 127810, 255620, 933013, 1866026, 3732052, 4665065, 9330130, 18660260]

約数ペア:

[(1, 18660260), (2, 9330130), (4, 4665065), (5, 3732052), (10, 1866026), (20, 933013), (73, 255620), (146, 127810), (292, 63905), (365, 51124), (730, 25562), (1460, 12781)]