20782575359

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{19979}}^1$

素因数の和:20100

約数の個数: 48

約数和(自身を含む): 27551301120

約数和(自身を除く): 6768725761

約数列:

[1, 7, 13, 23, 49, 71, 91, 161, 299, 497, 637, 923, 1127, 1633, 2093, 3479, 6461, 11431, 14651, 19979, 21229, 45227, 80017, 139853, 148603, 259727, 459517, 978971, 1040221, 1418509, 1818089, 3216619, 5973721, 9929563, 12726623, 18440617, 22516333, 32625707, 41816047, 69506941, 129084319, 228379949, 292712329, 424134191, 903590233, 1598659643, 2968939337, 20782575359]

約数ペア:

[(1, 20782575359), (7, 2968939337), (13, 1598659643), (23, 903590233), (49, 424134191), (71, 292712329), (91, 228379949), (161, 129084319), (299, 69506941), (497, 41816047), (637, 32625707), (923, 22516333), (1127, 18440617), (1633, 12726623), (2093, 9929563), (3479, 5973721), (6461, 3216619), (11431, 1818089), (14651, 1418509), (19979, 1040221), (21229, 978971), (45227, 459517), (80017, 259727), (139853, 148603)]