28011445

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2347}}^1$

素因数の和:2401

約数の個数: 32

約数和(自身を含む): 43278336

約数和(自身を除く): 15266891

約数列:

[1, 5, 7, 11, 31, 35, 55, 77, 155, 217, 341, 385, 1085, 1705, 2347, 2387, 11735, 11935, 16429, 25817, 72757, 82145, 129085, 180719, 363785, 509299, 800327, 903595, 2546495, 4001635, 5602289, 28011445]

約数ペア:

[(1, 28011445), (5, 5602289), (7, 4001635), (11, 2546495), (31, 903595), (35, 800327), (55, 509299), (77, 363785), (155, 180719), (217, 129085), (341, 82145), (385, 72757), (1085, 25817), (1705, 16429), (2347, 11935), (2387, 11735)]