28867540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{111029}}^1$

素因数の和:111051

約数の個数: 24

約数和(自身を含む): 65285640

約数和(自身を除く): 36418100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 111029, 222058, 444116, 555145, 1110290, 1443377, 2220580, 2886754, 5773508, 7216885, 14433770, 28867540]

約数ペア:

[(1, 28867540), (2, 14433770), (4, 7216885), (5, 5773508), (10, 2886754), (13, 2220580), (20, 1443377), (26, 1110290), (52, 555145), (65, 444116), (130, 222058), (260, 111029)]