28883660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{111091}}^1$

素因数の和:111113

約数の個数: 24

約数和(自身を含む): 65322096

約数和(自身を除く): 36438436

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 111091, 222182, 444364, 555455, 1110910, 1444183, 2221820, 2888366, 5776732, 7220915, 14441830, 28883660]

約数ペア:

[(1, 28883660), (2, 14441830), (4, 7220915), (5, 5776732), (10, 2888366), (13, 2221820), (20, 1444183), (26, 1110910), (52, 555455), (65, 444364), (130, 222182), (260, 111091)]