18868840

素因数分解:

$2^3\times 5^1\times {\mathrm{471721}}^1$

素因数の和:471732

約数の個数: 16

約数和(自身を含む): 42454980

約数和(自身を除く): 23586140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 471721, 943442, 1886884, 2358605, 3773768, 4717210, 9434420, 18868840]

約数ペア:

[(1, 18868840), (2, 9434420), (4, 4717210), (5, 3773768), (8, 2358605), (10, 1886884), (20, 943442), (40, 471721)]