15557620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1129}}^1$

素因数の和:1204

約数の個数: 48

約数和(自身を含む): 35879760

約数和(自身を除く): 20322140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1129, 1378, 2258, 2756, 3445, 4516, 5645, 6890, 11290, 13780, 14677, 22580, 29354, 58708, 59837, 73385, 119674, 146770, 239348, 293540, 299185, 598370, 777881, 1196740, 1555762, 3111524, 3889405, 7778810, 15557620]

約数ペア:

[(1, 15557620), (2, 7778810), (4, 3889405), (5, 3111524), (10, 1555762), (13, 1196740), (20, 777881), (26, 598370), (52, 299185), (53, 293540), (65, 239348), (106, 146770), (130, 119674), (212, 73385), (260, 59837), (265, 58708), (530, 29354), (689, 22580), (1060, 14677), (1129, 13780), (1378, 11290), (2258, 6890), (2756, 5645), (3445, 4516)]