20370620

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1259}}^1$

素因数の和:2077

約数の個数: 24

約数和(自身を含む): 42865200

約数和(自身を除く): 22494580

約数列:

[1, 2, 4, 5, 10, 20, 809, 1259, 1618, 2518, 3236, 4045, 5036, 6295, 8090, 12590, 16180, 25180, 1018531, 2037062, 4074124, 5092655, 10185310, 20370620]

約数ペア:

[(1, 20370620), (2, 10185310), (4, 5092655), (5, 4074124), (10, 2037062), (20, 1018531), (809, 25180), (1259, 16180), (1618, 12590), (2518, 8090), (3236, 6295), (4045, 5036)]