78284620

素因数分解:

$2^2\times 5^1\times {\mathrm{1259}}^1\times {\mathrm{3109}}^1$

素因数の和:4377

約数の個数: 24

約数和(自身を含む): 164581200

約数和(自身を除く): 86296580

約数列:

[1, 2, 4, 5, 10, 20, 1259, 2518, 3109, 5036, 6218, 6295, 12436, 12590, 15545, 25180, 31090, 62180, 3914231, 7828462, 15656924, 19571155, 39142310, 78284620]

約数ペア:

[(1, 78284620), (2, 39142310), (4, 19571155), (5, 15656924), (10, 7828462), (20, 3914231), (1259, 62180), (2518, 31090), (3109, 25180), (5036, 15545), (6218, 12590), (6295, 12436)]