19993120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17851}}^1$

素因数の和:17873

約数の個数: 48

約数和(自身を含む): 53984448

約数和(自身を除く): 33991328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 17851, 35702, 71404, 89255, 124957, 142808, 178510, 249914, 285616, 357020, 499828, 571232, 624785, 714040, 999656, 1249570, 1428080, 1999312, 2499140, 2856160, 3998624, 4998280, 9996560, 19993120]

約数ペア:

[(1, 19993120), (2, 9996560), (4, 4998280), (5, 3998624), (7, 2856160), (8, 2499140), (10, 1999312), (14, 1428080), (16, 1249570), (20, 999656), (28, 714040), (32, 624785), (35, 571232), (40, 499828), (56, 357020), (70, 285616), (80, 249914), (112, 178510), (140, 142808), (160, 124957), (224, 89255), (280, 71404), (560, 35702), (1120, 17851)]