82303720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:602

約数の個数: 64

約数和(自身を含む): 191664000

約数和(自身を除く): 109360280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 109, 172, 215, 218, 344, 430, 436, 439, 545, 860, 872, 878, 1090, 1720, 1756, 2180, 2195, 3512, 4360, 4390, 4687, 8780, 9374, 17560, 18748, 18877, 23435, 37496, 37754, 46870, 47851, 75508, 93740, 94385, 95702, 151016, 187480, 188770, 191404, 239255, 377540, 382808, 478510, 755080, 957020, 1914040, 2057593, 4115186, 8230372, 10287965, 16460744, 20575930, 41151860, 82303720]

約数ペア:

[(1, 82303720), (2, 41151860), (4, 20575930), (5, 16460744), (8, 10287965), (10, 8230372), (20, 4115186), (40, 2057593), (43, 1914040), (86, 957020), (109, 755080), (172, 478510), (215, 382808), (218, 377540), (344, 239255), (430, 191404), (436, 188770), (439, 187480), (545, 151016), (860, 95702), (872, 94385), (878, 93740), (1090, 75508), (1720, 47851), (1756, 46870), (2180, 37754), (2195, 37496), (3512, 23435), (4360, 18877), (4390, 18748), (4687, 17560), (8780, 9374)]