28955960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65809}}^1$

素因数の和:65831

約数の個数: 32

約数和(自身を含む): 71074800

約数和(自身を除く): 42118840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65809, 131618, 263236, 329045, 526472, 658090, 723899, 1316180, 1447798, 2632360, 2895596, 3619495, 5791192, 7238990, 14477980, 28955960]

約数ペア:

[(1, 28955960), (2, 14477980), (4, 7238990), (5, 5791192), (8, 3619495), (10, 2895596), (11, 2632360), (20, 1447798), (22, 1316180), (40, 723899), (44, 658090), (55, 526472), (88, 329045), (110, 263236), (220, 131618), (440, 65809)]