164125870

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{400307}}^1$

素因数の和:400355

約数の個数: 16

約数和(自身を含む): 302632848

約数和(自身を除く): 138506978

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 400307, 800614, 2001535, 4003070, 16412587, 32825174, 82062935, 164125870]

約数ペア:

[(1, 164125870), (2, 82062935), (5, 32825174), (10, 16412587), (41, 4003070), (82, 2001535), (205, 800614), (410, 400307)]