168490220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1\times {\mathrm{349}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 359856000

約数和(自身を除く): 191365780

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 239, 349, 404, 478, 505, 698, 956, 1010, 1195, 1396, 1745, 2020, 2390, 3490, 4780, 6980, 24139, 35249, 48278, 70498, 83411, 96556, 120695, 140996, 166822, 176245, 241390, 333644, 352490, 417055, 482780, 704980, 834110, 1668220, 8424511, 16849022, 33698044, 42122555, 84245110, 168490220]

約数ペア:

[(1, 168490220), (2, 84245110), (4, 42122555), (5, 33698044), (10, 16849022), (20, 8424511), (101, 1668220), (202, 834110), (239, 704980), (349, 482780), (404, 417055), (478, 352490), (505, 333644), (698, 241390), (956, 176245), (1010, 166822), (1195, 140996), (1396, 120695), (1745, 96556), (2020, 83411), (2390, 70498), (3490, 48278), (4780, 35249), (6980, 24139)]