156660620

素因数分解:

$2^2\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{4019}}^1$

素因数の和:5977

約数の個数: 24

約数和(自身を含む): 329238000

約数和(自身を除く): 172577380

約数列:

[1, 2, 4, 5, 10, 20, 1949, 3898, 4019, 7796, 8038, 9745, 16076, 19490, 20095, 38980, 40190, 80380, 7833031, 15666062, 31332124, 39165155, 78330310, 156660620]

約数ペア:

[(1, 156660620), (2, 78330310), (4, 39165155), (5, 31332124), (10, 15666062), (20, 7833031), (1949, 80380), (3898, 40190), (4019, 38980), (7796, 20095), (8038, 19490), (9745, 16076)]