28081305

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{373}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 56010240

約数和(自身を除く): 27928935

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 239, 315, 373, 717, 1119, 1195, 1673, 1865, 2151, 2611, 3357, 3585, 5019, 5595, 7833, 8365, 10755, 13055, 15057, 16785, 23499, 25095, 39165, 75285, 89147, 117495, 267441, 445735, 624029, 802323, 1337205, 1872087, 3120145, 4011615, 5616261, 9360435, 28081305]

約数ペア:

[(1, 28081305), (3, 9360435), (5, 5616261), (7, 4011615), (9, 3120145), (15, 1872087), (21, 1337205), (35, 802323), (45, 624029), (63, 445735), (105, 267441), (239, 117495), (315, 89147), (373, 75285), (717, 39165), (1119, 25095), (1195, 23499), (1673, 16785), (1865, 15057), (2151, 13055), (2611, 10755), (3357, 8365), (3585, 7833), (5019, 5595)]