20199751915

素因数分解:

$5^1\times 7^3\times {\mathrm{83}}^1\times {\mathrm{141907}}^1$

素因数の和:142016

約数の個数: 32

約数和(自身を含む): 28608652800

約数和(自身を除く): 8408900885

約数列:

[1, 5, 7, 35, 49, 83, 245, 343, 415, 581, 1715, 2905, 4067, 20335, 28469, 141907, 142345, 709535, 993349, 4966745, 6953443, 11778281, 34767215, 48674101, 58891405, 82447967, 243370505, 412239835, 577135769, 2885678845, 4039950383, 20199751915]

約数ペア:

[(1, 20199751915), (5, 4039950383), (7, 2885678845), (35, 577135769), (49, 412239835), (83, 243370505), (245, 82447967), (343, 58891405), (415, 48674101), (581, 34767215), (1715, 11778281), (2905, 6953443), (4067, 4966745), (20335, 993349), (28469, 709535), (141907, 142345)]