638998860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{10649981}}^1$

素因数の和:10649993

約数の個数: 24

約数和(自身を含む): 1789196976

約数和(自身を除く): 1150198116

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 10649981, 21299962, 31949943, 42599924, 53249905, 63899886, 106499810, 127799772, 159749715, 212999620, 319499430, 638998860]

約数ペア:

[(1, 638998860), (2, 319499430), (3, 212999620), (4, 159749715), (5, 127799772), (6, 106499810), (10, 63899886), (12, 53249905), (15, 42599924), (20, 31949943), (30, 21299962), (60, 10649981)]