61251515

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{173}}^1\times {\mathrm{419}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 80241840

約数和(自身を除く): 18990325

約数列:

[1, 5, 13, 65, 169, 173, 419, 845, 865, 2095, 2249, 5447, 11245, 27235, 29237, 70811, 72487, 146185, 354055, 362435, 942331, 4711655, 12250303, 61251515]

約数ペア:

[(1, 61251515), (5, 12250303), (13, 4711655), (65, 942331), (169, 362435), (173, 354055), (419, 146185), (845, 72487), (865, 70811), (2095, 29237), (2249, 27235), (5447, 11245)]