321707080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1\times {\mathrm{521}}^1$

素因数の和:934

約数の個数: 64

約数和(自身を含む): 744163200

約数和(自身を除く): 422456120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 359, 430, 521, 718, 860, 1042, 1436, 1720, 1795, 2084, 2605, 2872, 3590, 4168, 5210, 7180, 10420, 14360, 15437, 20840, 22403, 30874, 44806, 61748, 77185, 89612, 112015, 123496, 154370, 179224, 187039, 224030, 308740, 374078, 448060, 617480, 748156, 896120, 935195, 1496312, 1870390, 3740780, 7481560, 8042677, 16085354, 32170708, 40213385, 64341416, 80426770, 160853540, 321707080]

約数ペア:

[(1, 321707080), (2, 160853540), (4, 80426770), (5, 64341416), (8, 40213385), (10, 32170708), (20, 16085354), (40, 8042677), (43, 7481560), (86, 3740780), (172, 1870390), (215, 1496312), (344, 935195), (359, 896120), (430, 748156), (521, 617480), (718, 448060), (860, 374078), (1042, 308740), (1436, 224030), (1720, 187039), (1795, 179224), (2084, 154370), (2605, 123496), (2872, 112015), (3590, 89612), (4168, 77185), (5210, 61748), (7180, 44806), (10420, 30874), (14360, 22403), (15437, 20840)]