81519672

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{261281}}^1$

素因数の和:261303

約数の個数: 32

約数和(自身を含む): 219476880

約数和(自身を除く): 137957208

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 261281, 522562, 783843, 1045124, 1567686, 2090248, 3135372, 3396653, 6270744, 6793306, 10189959, 13586612, 20379918, 27173224, 40759836, 81519672]

約数ペア:

[(1, 81519672), (2, 40759836), (3, 27173224), (4, 20379918), (6, 13586612), (8, 10189959), (12, 6793306), (13, 6270744), (24, 3396653), (26, 3135372), (39, 2090248), (52, 1567686), (78, 1045124), (104, 783843), (156, 522562), (312, 261281)]