90820880

素因数分解:

$2^4\times 5^1\times {\mathrm{1135261}}^1$

素因数の和:1135274

約数の個数: 20

約数和(自身を含む): 211158732

約数和(自身を除く): 120337852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1135261, 2270522, 4541044, 5676305, 9082088, 11352610, 18164176, 22705220, 45410440, 90820880]

約数ペア:

[(1, 90820880), (2, 45410440), (4, 22705220), (5, 18164176), (8, 11352610), (10, 9082088), (16, 5676305), (20, 4541044), (40, 2270522), (80, 1135261)]