81561992

素因数分解:

$2^3\times {\mathrm{31}}^2\times {\mathrm{103}}^2$

素因数の和:274

約数の個数: 36

約数和(自身を含む): 159570135

約数和(自身を除く): 78008143

約数列:

[1, 2, 4, 8, 31, 62, 103, 124, 206, 248, 412, 824, 961, 1922, 3193, 3844, 6386, 7688, 10609, 12772, 21218, 25544, 42436, 84872, 98983, 197966, 328879, 395932, 657758, 791864, 1315516, 2631032, 10195249, 20390498, 40780996, 81561992]

約数ペア:

[(1, 81561992), (2, 40780996), (4, 20390498), (8, 10195249), (31, 2631032), (62, 1315516), (103, 791864), (124, 657758), (206, 395932), (248, 328879), (412, 197966), (824, 98983), (961, 84872), (1922, 42436), (3193, 25544), (3844, 21218), (6386, 12772), (7688, 10609)]