78157980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{144737}}^1$

素因数の和:144755

約数の個数: 48

約数和(自身を含む): 243159840

約数和(自身を除く): 165001860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 144737, 289474, 434211, 578948, 723685, 868422, 1302633, 1447370, 1736844, 2171055, 2605266, 2894740, 3907899, 4342110, 5210532, 6513165, 7815798, 8684220, 13026330, 15631596, 19539495, 26052660, 39078990, 78157980]

約数ペア:

[(1, 78157980), (2, 39078990), (3, 26052660), (4, 19539495), (5, 15631596), (6, 13026330), (9, 8684220), (10, 7815798), (12, 6513165), (15, 5210532), (18, 4342110), (20, 3907899), (27, 2894740), (30, 2605266), (36, 2171055), (45, 1736844), (54, 1447370), (60, 1302633), (90, 868422), (108, 723685), (135, 578948), (180, 434211), (270, 289474), (540, 144737)]