18020020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31069}}^1$

素因数の和:31107

約数の個数: 24

約数和(自身を含む): 39148200

約数和(自身を除く): 21128180

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 31069, 62138, 124276, 155345, 310690, 621380, 901001, 1802002, 3604004, 4505005, 9010010, 18020020]

約数ペア:

[(1, 18020020), (2, 9010010), (4, 4505005), (5, 3604004), (10, 1802002), (20, 901001), (29, 621380), (58, 310690), (116, 155345), (145, 124276), (290, 62138), (580, 31069)]