77788100

素因数分解:

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

素因数の和:1209

約数の個数: 72

約数和(自身を含む): 185378760

約数和(自身を除く): 107590660

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 100, 106, 130, 212, 260, 265, 325, 530, 650, 689, 1060, 1129, 1300, 1325, 1378, 2258, 2650, 2756, 3445, 4516, 5300, 5645, 6890, 11290, 13780, 14677, 17225, 22580, 28225, 29354, 34450, 56450, 58708, 59837, 68900, 73385, 112900, 119674, 146770, 239348, 293540, 299185, 366925, 598370, 733850, 777881, 1196740, 1467700, 1495925, 1555762, 2991850, 3111524, 3889405, 5983700, 7778810, 15557620, 19447025, 38894050, 77788100]

約数ペア:

[(1, 77788100), (2, 38894050), (4, 19447025), (5, 15557620), (10, 7778810), (13, 5983700), (20, 3889405), (25, 3111524), (26, 2991850), (50, 1555762), (52, 1495925), (53, 1467700), (65, 1196740), (100, 777881), (106, 733850), (130, 598370), (212, 366925), (260, 299185), (265, 293540), (325, 239348), (530, 146770), (650, 119674), (689, 112900), (1060, 73385), (1129, 68900), (1300, 59837), (1325, 58708), (1378, 56450), (2258, 34450), (2650, 29354), (2756, 28225), (3445, 22580), (4516, 17225), (5300, 14677), (5645, 13780), (6890, 11290)]