20517550

素因数分解:

$2^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{2083}}^1$

素因数の和:2292

約数の個数: 24

約数和(自身を含む): 38374776

約数和(自身を除く): 17857226

約数列:

[1, 2, 5, 10, 25, 50, 197, 394, 985, 1970, 2083, 4166, 4925, 9850, 10415, 20830, 52075, 104150, 410351, 820702, 2051755, 4103510, 10258775, 20517550]

約数ペア:

[(1, 20517550), (2, 10258775), (5, 4103510), (10, 2051755), (25, 820702), (50, 410351), (197, 104150), (394, 52075), (985, 20830), (1970, 10415), (2083, 9850), (4166, 4925)]