81934520

素因数分解:

$2^3\times 5^1\times {\mathrm{293}}^1\times {\mathrm{6991}}^1$

素因数の和:7295

約数の個数: 32

約数和(自身を含む): 185008320

約数和(自身を除く): 103073800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 2344, 2930, 5860, 6991, 11720, 13982, 27964, 34955, 55928, 69910, 139820, 279640, 2048363, 4096726, 8193452, 10241815, 16386904, 20483630, 40967260, 81934520]

約数ペア:

[(1, 81934520), (2, 40967260), (4, 20483630), (5, 16386904), (8, 10241815), (10, 8193452), (20, 4096726), (40, 2048363), (293, 279640), (586, 139820), (1172, 69910), (1465, 55928), (2344, 34955), (2930, 27964), (5860, 13982), (6991, 11720)]