20079955

素因数分解:

$5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1999}}^1$

素因数の和:2059

約数の個数: 24

約数和(自身を含む): 28728000

約数和(自身を除く): 8648045

約数列:

[1, 5, 7, 35, 41, 49, 205, 245, 287, 1435, 1999, 2009, 9995, 10045, 13993, 69965, 81959, 97951, 409795, 489755, 573713, 2868565, 4015991, 20079955]

約数ペア:

[(1, 20079955), (5, 4015991), (7, 2868565), (35, 573713), (41, 489755), (49, 409795), (205, 97951), (245, 81959), (287, 69965), (1435, 13993), (1999, 10045), (2009, 9995)]