20111580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{111731}}^1$

素因数の和:111746

約数の個数: 36

約数和(自身を含む): 61005672

約数和(自身を除く): 40894092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 111731, 223462, 335193, 446924, 558655, 670386, 1005579, 1117310, 1340772, 1675965, 2011158, 2234620, 3351930, 4022316, 5027895, 6703860, 10055790, 20111580]

約数ペア:

[(1, 20111580), (2, 10055790), (3, 6703860), (4, 5027895), (5, 4022316), (6, 3351930), (9, 2234620), (10, 2011158), (12, 1675965), (15, 1340772), (18, 1117310), (20, 1005579), (30, 670386), (36, 558655), (45, 446924), (60, 335193), (90, 223462), (180, 111731)]