20380425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{20903}}^1$

素因数の和:20929

約数の個数: 24

約数和(自身を含む): 36289344

約数和(自身を除く): 15908919

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 20903, 62709, 104515, 271739, 313545, 522575, 815217, 1358695, 1567725, 4076085, 6793475, 20380425]

約数ペア:

[(1, 20380425), (3, 6793475), (5, 4076085), (13, 1567725), (15, 1358695), (25, 815217), (39, 522575), (65, 313545), (75, 271739), (195, 104515), (325, 62709), (975, 20903)]