2778100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2137}}^1$

素因数の和:2164

約数の個数: 36

約数和(自身を含む): 6495244

約数和(自身を除く): 3717144

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 2137, 4274, 8548, 10685, 21370, 27781, 42740, 53425, 55562, 106850, 111124, 138905, 213700, 277810, 555620, 694525, 1389050, 2778100]

約数ペア:

[(1, 2778100), (2, 1389050), (4, 694525), (5, 555620), (10, 277810), (13, 213700), (20, 138905), (25, 111124), (26, 106850), (50, 55562), (52, 53425), (65, 42740), (100, 27781), (130, 21370), (260, 10685), (325, 8548), (650, 4274), (1300, 2137)]