2561260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9851}}^1$

素因数の和:9873

約数の個数: 24

約数和(自身を含む): 5792976

約数和(自身を除く): 3231716

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 9851, 19702, 39404, 49255, 98510, 128063, 197020, 256126, 512252, 640315, 1280630, 2561260]

約数ペア:

[(1, 2561260), (2, 1280630), (4, 640315), (5, 512252), (10, 256126), (13, 197020), (20, 128063), (26, 98510), (52, 49255), (65, 39404), (130, 19702), (260, 9851)]