19470980

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1951}}^1$

素因数の和:2459

約数の個数: 24

約数和(自身を含む): 40992000

約数和(自身を除く): 21521020

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1951, 1996, 2495, 3902, 4990, 7804, 9755, 9980, 19510, 39020, 973549, 1947098, 3894196, 4867745, 9735490, 19470980]

約数ペア:

[(1, 19470980), (2, 9735490), (4, 4867745), (5, 3894196), (10, 1947098), (20, 973549), (499, 39020), (998, 19510), (1951, 9980), (1996, 9755), (2495, 7804), (3902, 4990)]