207908920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{2381}}^1$

素因数の和:2488

約数の個数: 64

約数和(自身を含む): 488786400

約数和(自身を除く): 280877480

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 59, 74, 118, 148, 185, 236, 295, 296, 370, 472, 590, 740, 1180, 1480, 2183, 2360, 2381, 4366, 4762, 8732, 9524, 10915, 11905, 17464, 19048, 21830, 23810, 43660, 47620, 87320, 88097, 95240, 140479, 176194, 280958, 352388, 440485, 561916, 702395, 704776, 880970, 1123832, 1404790, 1761940, 2809580, 3523880, 5197723, 5619160, 10395446, 20790892, 25988615, 41581784, 51977230, 103954460, 207908920]

約数ペア:

[(1, 207908920), (2, 103954460), (4, 51977230), (5, 41581784), (8, 25988615), (10, 20790892), (20, 10395446), (37, 5619160), (40, 5197723), (59, 3523880), (74, 2809580), (118, 1761940), (148, 1404790), (185, 1123832), (236, 880970), (295, 704776), (296, 702395), (370, 561916), (472, 440485), (590, 352388), (740, 280958), (1180, 176194), (1480, 140479), (2183, 95240), (2360, 88097), (2381, 87320), (4366, 47620), (4762, 43660), (8732, 23810), (9524, 21830), (10915, 19048), (11905, 17464)]