28429040

素因数分解:

$2^4\times 5^1\times {\mathrm{355363}}^1$

素因数の和:355376

約数の個数: 20

約数和(自身を含む): 66097704

約数和(自身を除く): 37668664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 355363, 710726, 1421452, 1776815, 2842904, 3553630, 5685808, 7107260, 14214520, 28429040]

約数ペア:

[(1, 28429040), (2, 14214520), (4, 7107260), (5, 5685808), (8, 3553630), (10, 2842904), (16, 1776815), (20, 1421452), (40, 710726), (80, 355363)]