78416018

素因数分解:

$2^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1\times {\mathrm{971}}^1$

素因数の和:1393

約数の個数: 16

約数和(自身を含む): 118972800

約数和(自身を除く): 40556782

約数列:

[1, 2, 149, 271, 298, 542, 971, 1942, 40379, 80758, 144679, 263141, 289358, 526282, 39208009, 78416018]

約数ペア:

[(1, 78416018), (2, 39208009), (149, 526282), (271, 289358), (298, 263141), (542, 144679), (971, 80758), (1942, 40379)]