66777440

素因数分解:

$2^5\times 5^1\times {\mathrm{487}}^1\times {\mathrm{857}}^1$

素因数の和:1359

約数の個数: 48

約数和(自身を含む): 158270112

約数和(自身を除く): 91492672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 487, 857, 974, 1714, 1948, 2435, 3428, 3896, 4285, 4870, 6856, 7792, 8570, 9740, 13712, 15584, 17140, 19480, 27424, 34280, 38960, 68560, 77920, 137120, 417359, 834718, 1669436, 2086795, 3338872, 4173590, 6677744, 8347180, 13355488, 16694360, 33388720, 66777440]

約数ペア:

[(1, 66777440), (2, 33388720), (4, 16694360), (5, 13355488), (8, 8347180), (10, 6677744), (16, 4173590), (20, 3338872), (32, 2086795), (40, 1669436), (80, 834718), (160, 417359), (487, 137120), (857, 77920), (974, 68560), (1714, 38960), (1948, 34280), (2435, 27424), (3428, 19480), (3896, 17140), (4285, 15584), (4870, 13712), (6856, 9740), (7792, 8570)]