85660040

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{7621}}^1$

素因数の和:7913

約数の個数: 32

約数和(自身を含む): 193446360

約数和(自身を除く): 107786320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 7621, 11240, 15242, 30484, 38105, 60968, 76210, 152420, 304840, 2141501, 4283002, 8566004, 10707505, 17132008, 21415010, 42830020, 85660040]

約数ペア:

[(1, 85660040), (2, 42830020), (4, 21415010), (5, 17132008), (8, 10707505), (10, 8566004), (20, 4283002), (40, 2141501), (281, 304840), (562, 152420), (1124, 76210), (1405, 60968), (2248, 38105), (2810, 30484), (5620, 15242), (7621, 11240)]