18219160

素因数分解:

$2^3\times 5^1\times {\mathrm{455479}}^1$

素因数の和:455490

約数の個数: 16

約数和(自身を含む): 40993200

約数和(自身を除く): 22774040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 455479, 910958, 1821916, 2277395, 3643832, 4554790, 9109580, 18219160]

約数ペア:

[(1, 18219160), (2, 9109580), (4, 4554790), (5, 3643832), (8, 2277395), (10, 1821916), (20, 910958), (40, 455479)]