19499960

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4733}}^1$

素因数の和:4847

約数の個数: 32

約数和(自身を含む): 44310240

約数和(自身を除く): 24810280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4733, 9466, 18932, 23665, 37864, 47330, 94660, 189320, 487499, 974998, 1949996, 2437495, 3899992, 4874990, 9749980, 19499960]

約数ペア:

[(1, 19499960), (2, 9749980), (4, 4874990), (5, 3899992), (8, 2437495), (10, 1949996), (20, 974998), (40, 487499), (103, 189320), (206, 94660), (412, 47330), (515, 37864), (824, 23665), (1030, 18932), (2060, 9466), (4120, 4733)]