20089385

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^2\times {\mathrm{53}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 25759944

約数和(自身を除く): 5670559

約数列:

[1, 5, 41, 43, 53, 205, 215, 265, 1763, 1849, 2173, 2279, 8815, 9245, 10865, 11395, 75809, 93439, 97997, 379045, 467195, 489985, 4017877, 20089385]

約数ペア:

[(1, 20089385), (5, 4017877), (41, 489985), (43, 467195), (53, 379045), (205, 97997), (215, 93439), (265, 75809), (1763, 11395), (1849, 10865), (2173, 9245), (2279, 8815)]