20549240

素因数分解:

$2^3\times 5^1\times {\mathrm{513731}}^1$

素因数の和:513742

約数の個数: 16

約数和(自身を含む): 46235880

約数和(自身を除く): 25686640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 513731, 1027462, 2054924, 2568655, 4109848, 5137310, 10274620, 20549240]

約数ペア:

[(1, 20549240), (2, 10274620), (4, 5137310), (5, 4109848), (8, 2568655), (10, 2054924), (20, 1027462), (40, 513731)]