20986740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{116593}}^1$

素因数の和:116608

約数の個数: 36

約数和(自身を含む): 63660324

約数和(自身を除く): 42673584

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 116593, 233186, 349779, 466372, 582965, 699558, 1049337, 1165930, 1399116, 1748895, 2098674, 2331860, 3497790, 4197348, 5246685, 6995580, 10493370, 20986740]

約数ペア:

[(1, 20986740), (2, 10493370), (3, 6995580), (4, 5246685), (5, 4197348), (6, 3497790), (9, 2331860), (10, 2098674), (12, 1748895), (15, 1399116), (18, 1165930), (20, 1049337), (30, 699558), (36, 582965), (45, 466372), (60, 349779), (90, 233186), (180, 116593)]