19446520

素因数分解:

$2^3\times 5^1\times {\mathrm{486163}}^1$

素因数の和:486174

約数の個数: 16

約数和(自身を含む): 43754760

約数和(自身を除く): 24308240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 486163, 972326, 1944652, 2430815, 3889304, 4861630, 9723260, 19446520]

約数ペア:

[(1, 19446520), (2, 9723260), (4, 4861630), (5, 3889304), (8, 2430815), (10, 1944652), (20, 972326), (40, 486163)]