25812020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{99277}}^1$

素因数の和:99299

約数の個数: 24

約数和(自身を含む): 58375464

約数和(自身を除く): 32563444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 99277, 198554, 397108, 496385, 992770, 1290601, 1985540, 2581202, 5162404, 6453005, 12906010, 25812020]

約数ペア:

[(1, 25812020), (2, 12906010), (4, 6453005), (5, 5162404), (10, 2581202), (13, 1985540), (20, 1290601), (26, 992770), (52, 496385), (65, 397108), (130, 198554), (260, 99277)]