20491740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113843}}^1$

素因数の和:113858

約数の個数: 36

約数和(自身を含む): 62158824

約数和(自身を除く): 41667084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 113843, 227686, 341529, 455372, 569215, 683058, 1024587, 1138430, 1366116, 1707645, 2049174, 2276860, 3415290, 4098348, 5122935, 6830580, 10245870, 20491740]

約数ペア:

[(1, 20491740), (2, 10245870), (3, 6830580), (4, 5122935), (5, 4098348), (6, 3415290), (9, 2276860), (10, 2049174), (12, 1707645), (15, 1366116), (18, 1138430), (20, 1024587), (30, 683058), (36, 569215), (45, 455372), (60, 341529), (90, 227686), (180, 113843)]