64762960

素因数分解:

$2^4\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1259}}^1$

素因数の和:1915

約数の個数: 40

約数和(自身を含む): 150927840

約数和(自身を除く): 86164880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 643, 1259, 1286, 2518, 2572, 3215, 5036, 5144, 6295, 6430, 10072, 10288, 12590, 12860, 20144, 25180, 25720, 50360, 51440, 100720, 809537, 1619074, 3238148, 4047685, 6476296, 8095370, 12952592, 16190740, 32381480, 64762960]

約数ペア:

[(1, 64762960), (2, 32381480), (4, 16190740), (5, 12952592), (8, 8095370), (10, 6476296), (16, 4047685), (20, 3238148), (40, 1619074), (80, 809537), (643, 100720), (1259, 51440), (1286, 50360), (2518, 25720), (2572, 25180), (3215, 20144), (5036, 12860), (5144, 12590), (6295, 10288), (6430, 10072)]