19292080

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1009}}^1$

素因数の和:1261

約数の個数: 40

約数和(自身を含む): 45086400

約数和(自身を除く): 25794320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1009, 1195, 1912, 2018, 2390, 3824, 4036, 4780, 5045, 8072, 9560, 10090, 16144, 19120, 20180, 40360, 80720, 241151, 482302, 964604, 1205755, 1929208, 2411510, 3858416, 4823020, 9646040, 19292080]

約数ペア:

[(1, 19292080), (2, 9646040), (4, 4823020), (5, 3858416), (8, 2411510), (10, 1929208), (16, 1205755), (20, 964604), (40, 482302), (80, 241151), (239, 80720), (478, 40360), (956, 20180), (1009, 19120), (1195, 16144), (1912, 10090), (2018, 9560), (2390, 8072), (3824, 5045), (4036, 4780)]