28148380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108263}}^1$

素因数の和:108285

約数の個数: 24

約数和(自身を含む): 63659232

約数和(自身を除く): 35510852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108263, 216526, 433052, 541315, 1082630, 1407419, 2165260, 2814838, 5629676, 7037095, 14074190, 28148380]

約数ペア:

[(1, 28148380), (2, 14074190), (4, 7037095), (5, 5629676), (10, 2814838), (13, 2165260), (20, 1407419), (26, 1082630), (52, 541315), (65, 433052), (130, 216526), (260, 108263)]