397768460

素因数分解:

$2^2\times 5^1\times {\mathrm{1259}}^1\times {\mathrm{15797}}^1$

素因数の和:17065

約数の個数: 24

約数和(自身を含む): 836030160

約数和(自身を除く): 438261700

約数列:

[1, 2, 4, 5, 10, 20, 1259, 2518, 5036, 6295, 12590, 15797, 25180, 31594, 63188, 78985, 157970, 315940, 19888423, 39776846, 79553692, 99442115, 198884230, 397768460]

約数ペア:

[(1, 397768460), (2, 198884230), (4, 99442115), (5, 79553692), (10, 39776846), (20, 19888423), (1259, 315940), (2518, 157970), (5036, 78985), (6295, 63188), (12590, 31594), (15797, 25180)]