28349620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109037}}^1$

素因数の和:109059

約数の個数: 24

約数和(自身を含む): 64114344

約数和(自身を除く): 35764724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 109037, 218074, 436148, 545185, 1090370, 1417481, 2180740, 2834962, 5669924, 7087405, 14174810, 28349620]

約数ペア:

[(1, 28349620), (2, 14174810), (4, 7087405), (5, 5669924), (10, 2834962), (13, 2180740), (20, 1417481), (26, 1090370), (52, 545185), (65, 436148), (130, 218074), (260, 109037)]