81523676

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{491}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 160462848

約数和(自身を除く): 78939172

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 103, 124, 206, 403, 412, 491, 806, 982, 1339, 1612, 1964, 2678, 3193, 5356, 6383, 6386, 12766, 12772, 15221, 25532, 30442, 41509, 50573, 60884, 83018, 101146, 166036, 197873, 202292, 395746, 657449, 791492, 1314898, 1567763, 2629796, 3135526, 6271052, 20380919, 40761838, 81523676]

約数ペア:

[(1, 81523676), (2, 40761838), (4, 20380919), (13, 6271052), (26, 3135526), (31, 2629796), (52, 1567763), (62, 1314898), (103, 791492), (124, 657449), (206, 395746), (403, 202292), (412, 197873), (491, 166036), (806, 101146), (982, 83018), (1339, 60884), (1612, 50573), (1964, 41509), (2678, 30442), (3193, 25532), (5356, 15221), (6383, 12772), (6386, 12766)]