81520266

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{438281}}^1$

素因数の和:438317

約数の個数: 16

約数和(自身を含む): 168300288

約数和(自身を除く): 86780022

約数列:

[1, 2, 3, 6, 31, 62, 93, 186, 438281, 876562, 1314843, 2629686, 13586711, 27173422, 40760133, 81520266]

約数ペア:

[(1, 81520266), (2, 40760133), (3, 27173422), (6, 13586711), (31, 2629686), (62, 1314843), (93, 876562), (186, 438281)]