1099840

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{491}}^1$

素因数の和:515

約数の個数: 56

約数和(自身を含む): 2999232

約数和(自身を除く): 1899392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 491, 560, 982, 1120, 1964, 2240, 2455, 3437, 3928, 4910, 6874, 7856, 9820, 13748, 15712, 17185, 19640, 27496, 31424, 34370, 39280, 54992, 68740, 78560, 109984, 137480, 157120, 219968, 274960, 549920, 1099840]

約数ペア:

[(1, 1099840), (2, 549920), (4, 274960), (5, 219968), (7, 157120), (8, 137480), (10, 109984), (14, 78560), (16, 68740), (20, 54992), (28, 39280), (32, 34370), (35, 31424), (40, 27496), (56, 19640), (64, 17185), (70, 15712), (80, 13748), (112, 9820), (140, 7856), (160, 6874), (224, 4910), (280, 3928), (320, 3437), (448, 2455), (491, 2240), (560, 1964), (982, 1120)]