28050520

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1259}}^1$

素因数の和:1827

約数の個数: 32

約数和(自身を含む): 63277200

約数和(自身を除く): 35226680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 1259, 2228, 2518, 2785, 4456, 5036, 5570, 6295, 10072, 11140, 12590, 22280, 25180, 50360, 701263, 1402526, 2805052, 3506315, 5610104, 7012630, 14025260, 28050520]

約数ペア:

[(1, 28050520), (2, 14025260), (4, 7012630), (5, 5610104), (8, 3506315), (10, 2805052), (20, 1402526), (40, 701263), (557, 50360), (1114, 25180), (1259, 22280), (2228, 12590), (2518, 11140), (2785, 10072), (4456, 6295), (5036, 5570)]