25027480

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1999}}^1$

素因数の和:2323

約数の個数: 32

約数和(自身を含む): 56520000

約数和(自身を除く): 31492520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 1999, 2504, 3130, 3998, 6260, 7996, 9995, 12520, 15992, 19990, 39980, 79960, 625687, 1251374, 2502748, 3128435, 5005496, 6256870, 12513740, 25027480]

約数ペア:

[(1, 25027480), (2, 12513740), (4, 6256870), (5, 5005496), (8, 3128435), (10, 2502748), (20, 1251374), (40, 625687), (313, 79960), (626, 39980), (1252, 19990), (1565, 15992), (1999, 12520), (2504, 9995), (3130, 7996), (3998, 6260)]