11720080

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3407}}^1$

素因数の和:3463

約数の個数: 40

約数和(自身を含む): 27891072

約数和(自身を除く): 16170992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3407, 3440, 6814, 13628, 17035, 27256, 34070, 54512, 68140, 136280, 146501, 272560, 293002, 586004, 732505, 1172008, 1465010, 2344016, 2930020, 5860040, 11720080]

約数ペア:

[(1, 11720080), (2, 5860040), (4, 2930020), (5, 2344016), (8, 1465010), (10, 1172008), (16, 732505), (20, 586004), (40, 293002), (43, 272560), (80, 146501), (86, 136280), (172, 68140), (215, 54512), (344, 34070), (430, 27256), (688, 17035), (860, 13628), (1720, 6814), (3407, 3440)]