154625720

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{7873}}^1$

素因数の和:8375

約数の個数: 32

約数和(自身を含む): 348660720

約数和(自身を除く): 194035000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 7873, 9820, 15746, 19640, 31492, 39365, 62984, 78730, 157460, 314920, 3865643, 7731286, 15462572, 19328215, 30925144, 38656430, 77312860, 154625720]

約数ペア:

[(1, 154625720), (2, 77312860), (4, 38656430), (5, 30925144), (8, 19328215), (10, 15462572), (20, 7731286), (40, 3865643), (491, 314920), (982, 157460), (1964, 78730), (2455, 62984), (3928, 39365), (4910, 31492), (7873, 19640), (9820, 15746)]