161711275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 234770688

約数和(自身を除く): 73059413

約数列:

[1, 5, 11, 23, 25, 37, 55, 115, 185, 253, 275, 407, 575, 691, 851, 925, 1265, 2035, 3455, 4255, 6325, 7601, 9361, 10175, 15893, 17275, 21275, 25567, 38005, 46805, 79465, 127835, 174823, 190025, 234025, 281237, 397325, 588041, 639175, 874115, 1406185, 2940205, 4370575, 6468451, 7030925, 14701025, 32342255, 161711275]

約数ペア:

[(1, 161711275), (5, 32342255), (11, 14701025), (23, 7030925), (25, 6468451), (37, 4370575), (55, 2940205), (115, 1406185), (185, 874115), (253, 639175), (275, 588041), (407, 397325), (575, 281237), (691, 234025), (851, 190025), (925, 174823), (1265, 127835), (2035, 79465), (3455, 46805), (4255, 38005), (6325, 25567), (7601, 21275), (9361, 17275), (10175, 15893)]