5445640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1249}}^1$

素因数の和:1369

約数の個数: 32

約数和(自身を含む): 12375000

約数和(自身を除く): 6929360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 1249, 2180, 2498, 4360, 4996, 6245, 9992, 12490, 24980, 49960, 136141, 272282, 544564, 680705, 1089128, 1361410, 2722820, 5445640]

約数ペア:

[(1, 5445640), (2, 2722820), (4, 1361410), (5, 1089128), (8, 680705), (10, 544564), (20, 272282), (40, 136141), (109, 49960), (218, 24980), (436, 12490), (545, 9992), (872, 6245), (1090, 4996), (1249, 4360), (2180, 2498)]