1770275

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{419}}^1$

素因数の和:455

約数の個数: 18

約数和(自身を含む): 2382660

約数和(自身を除く): 612385

約数列:

[1, 5, 13, 25, 65, 169, 325, 419, 845, 2095, 4225, 5447, 10475, 27235, 70811, 136175, 354055, 1770275]

約数ペア:

[(1, 1770275), (5, 354055), (13, 136175), (25, 70811), (65, 27235), (169, 10475), (325, 5447), (419, 4225), (845, 2095)]