990560740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3809849}}^1$

素因数の和:3809871

約数の個数: 24

約数和(自身を含む): 2240191800

約数和(自身を除く): 1249631060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 3809849, 7619698, 15239396, 19049245, 38098490, 49528037, 76196980, 99056074, 198112148, 247640185, 495280370, 990560740]

約数ペア:

[(1, 990560740), (2, 495280370), (4, 247640185), (5, 198112148), (10, 99056074), (13, 76196980), (20, 49528037), (26, 38098490), (52, 19049245), (65, 15239396), (130, 7619698), (260, 3809849)]