261055145

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{1069}}^1$

素因数の和:1134

約数の個数: 36

約数和(自身を含む): 360682020

約数和(自身を除く): 99626875

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 289, 845, 1069, 1105, 1445, 2873, 3757, 5345, 13897, 14365, 18173, 18785, 48841, 69485, 90865, 180661, 236249, 244205, 308941, 903305, 1181245, 1544705, 3071237, 4016233, 15356185, 20081165, 52211029, 261055145]

約数ペア:

[(1, 261055145), (5, 52211029), (13, 20081165), (17, 15356185), (65, 4016233), (85, 3071237), (169, 1544705), (221, 1181245), (289, 903305), (845, 308941), (1069, 244205), (1105, 236249), (1445, 180661), (2873, 90865), (3757, 69485), (5345, 48841), (13897, 18785), (14365, 18173)]