139431640

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{20873}}^1$

素因数の和:21051

約数の個数: 32

約数和(自身を含む): 315614880

約数和(自身を除く): 176183240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 3340, 6680, 20873, 41746, 83492, 104365, 166984, 208730, 417460, 834920, 3485791, 6971582, 13943164, 17428955, 27886328, 34857910, 69715820, 139431640]

約数ペア:

[(1, 139431640), (2, 69715820), (4, 34857910), (5, 27886328), (8, 17428955), (10, 13943164), (20, 6971582), (40, 3485791), (167, 834920), (334, 417460), (668, 208730), (835, 166984), (1336, 104365), (1670, 83492), (3340, 41746), (6680, 20873)]