11172820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4019}}^1$

素因数の和:4167

約数の個数: 24

約数和(自身を含む): 23637600

約数和(自身を除く): 12464780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 4019, 8038, 16076, 20095, 40190, 80380, 558641, 1117282, 2234564, 2793205, 5586410, 11172820]

約数ペア:

[(1, 11172820), (2, 5586410), (4, 2793205), (5, 2234564), (10, 1117282), (20, 558641), (139, 80380), (278, 40190), (556, 20095), (695, 16076), (1390, 8038), (2780, 4019)]