25215515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{3559}}^1$

素因数の和:3686

約数の個数: 16

約数和(自身を含む): 32894400

約数和(自身を除く): 7678885

約数列:

[1, 5, 13, 65, 109, 545, 1417, 3559, 7085, 17795, 46267, 231335, 387931, 1939655, 5043103, 25215515]

約数ペア:

[(1, 25215515), (5, 5043103), (13, 1939655), (65, 387931), (109, 231335), (545, 46267), (1417, 17795), (3559, 7085)]