20390220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113279}}^1$

素因数の和:113294

約数の個数: 36

約数和(自身を含む): 61850880

約数和(自身を除く): 41460660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 113279, 226558, 339837, 453116, 566395, 679674, 1019511, 1132790, 1359348, 1699185, 2039022, 2265580, 3398370, 4078044, 5097555, 6796740, 10195110, 20390220]

約数ペア:

[(1, 20390220), (2, 10195110), (3, 6796740), (4, 5097555), (5, 4078044), (6, 3398370), (9, 2265580), (10, 2039022), (12, 1699185), (15, 1359348), (18, 1132790), (20, 1019511), (30, 679674), (36, 566395), (45, 453116), (60, 339837), (90, 226558), (180, 113279)]