28016860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{26431}}^1$

素因数の和:26493

約数の個数: 24

約数和(自身を含む): 59947776

約数和(自身を除く): 31930916

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 26431, 52862, 105724, 132155, 264310, 528620, 1400843, 2801686, 5603372, 7004215, 14008430, 28016860]

約数ペア:

[(1, 28016860), (2, 14008430), (4, 7004215), (5, 5603372), (10, 2801686), (20, 1400843), (53, 528620), (106, 264310), (212, 132155), (265, 105724), (530, 52862), (1060, 26431)]