20218275536

素因数分解:

$2^4\times {\mathrm{4999}}^1\times {\mathrm{252779}}^1$

素因数の和:257786

約数の個数: 20

約数和(自身を含む): 39180900000

約数和(自身を除く): 18962624464

約数列:

[1, 2, 4, 8, 16, 4999, 9998, 19996, 39992, 79984, 252779, 505558, 1011116, 2022232, 4044464, 1263642221, 2527284442, 5054568884, 10109137768, 20218275536]

約数ペア:

[(1, 20218275536), (2, 10109137768), (4, 5054568884), (8, 2527284442), (16, 1263642221), (4999, 4044464), (9998, 2022232), (19996, 1011116), (39992, 505558), (79984, 252779)]