86664440

素因数分解:

$2^3\times 5^1\times {\mathrm{787}}^1\times {\mathrm{2753}}^1$

素因数の和:3551

約数の個数: 32

約数和(自身を含む): 195313680

約数和(自身を除く): 108649240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 787, 1574, 2753, 3148, 3935, 5506, 6296, 7870, 11012, 13765, 15740, 22024, 27530, 31480, 55060, 110120, 2166611, 4333222, 8666444, 10833055, 17332888, 21666110, 43332220, 86664440]

約数ペア:

[(1, 86664440), (2, 43332220), (4, 21666110), (5, 17332888), (8, 10833055), (10, 8666444), (20, 4333222), (40, 2166611), (787, 110120), (1574, 55060), (2753, 31480), (3148, 27530), (3935, 22024), (5506, 15740), (6296, 13765), (7870, 11012)]