30988700

素因数分解:

$2^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{2843}}^1$

素因数の和:2966

約数の個数: 36

約数和(自身を含む): 67886280

約数和(自身を除く): 36897580

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 218, 436, 545, 1090, 2180, 2725, 2843, 5450, 5686, 10900, 11372, 14215, 28430, 56860, 71075, 142150, 284300, 309887, 619774, 1239548, 1549435, 3098870, 6197740, 7747175, 15494350, 30988700]

約数ペア:

[(1, 30988700), (2, 15494350), (4, 7747175), (5, 6197740), (10, 3098870), (20, 1549435), (25, 1239548), (50, 619774), (100, 309887), (109, 284300), (218, 142150), (436, 71075), (545, 56860), (1090, 28430), (2180, 14215), (2725, 11372), (2843, 10900), (5450, 5686)]