19471240

素因数分解:

$2^3\times 5^1\times {\mathrm{486781}}^1$

素因数の和:486792

約数の個数: 16

約数和(自身を含む): 43810380

約数和(自身を除く): 24339140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 486781, 973562, 1947124, 2433905, 3894248, 4867810, 9735620, 19471240]

約数ペア:

[(1, 19471240), (2, 9735620), (4, 4867810), (5, 3894248), (8, 2433905), (10, 1947124), (20, 973562), (40, 486781)]