20162220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25849}}^1$

素因数の和:25874

約数の個数: 48

約数和(自身を含む): 60799200

約数和(自身を除く): 40636980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25849, 51698, 77547, 103396, 129245, 155094, 258490, 310188, 336037, 387735, 516980, 672074, 775470, 1008111, 1344148, 1550940, 1680185, 2016222, 3360370, 4032444, 5040555, 6720740, 10081110, 20162220]

約数ペア:

[(1, 20162220), (2, 10081110), (3, 6720740), (4, 5040555), (5, 4032444), (6, 3360370), (10, 2016222), (12, 1680185), (13, 1550940), (15, 1344148), (20, 1008111), (26, 775470), (30, 672074), (39, 516980), (52, 387735), (60, 336037), (65, 310188), (78, 258490), (130, 155094), (156, 129245), (195, 103396), (260, 77547), (390, 51698), (780, 25849)]