7686680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 18295200

約数和(自身を除く): 10608520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 109, 164, 172, 205, 215, 218, 328, 344, 410, 430, 436, 545, 820, 860, 872, 1090, 1640, 1720, 1763, 2180, 3526, 4360, 4469, 4687, 7052, 8815, 8938, 9374, 14104, 17630, 17876, 18748, 22345, 23435, 35260, 35752, 37496, 44690, 46870, 70520, 89380, 93740, 178760, 187480, 192167, 384334, 768668, 960835, 1537336, 1921670, 3843340, 7686680]

約数ペア:

[(1, 7686680), (2, 3843340), (4, 1921670), (5, 1537336), (8, 960835), (10, 768668), (20, 384334), (40, 192167), (41, 187480), (43, 178760), (82, 93740), (86, 89380), (109, 70520), (164, 46870), (172, 44690), (205, 37496), (215, 35752), (218, 35260), (328, 23435), (344, 22345), (410, 18748), (430, 17876), (436, 17630), (545, 14104), (820, 9374), (860, 8938), (872, 8815), (1090, 7052), (1640, 4687), (1720, 4469), (1763, 4360), (2180, 3526)]