20849660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80191}}^1$

素因数の和:80213

約数の個数: 24

約数和(自身を含む): 47152896

約数和(自身を除く): 26303236

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 80191, 160382, 320764, 400955, 801910, 1042483, 1603820, 2084966, 4169932, 5212415, 10424830, 20849660]

約数ペア:

[(1, 20849660), (2, 10424830), (4, 5212415), (5, 4169932), (10, 2084966), (13, 1603820), (20, 1042483), (26, 801910), (52, 400955), (65, 320764), (130, 160382), (260, 80191)]