1780453571

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 2124105984

約数和(自身を除く): 343652413

約数列:

[1, 13, 17, 43, 103, 107, 221, 289, 559, 731, 1339, 1391, 1751, 1819, 3757, 4429, 4601, 9503, 11021, 12427, 22763, 23647, 29767, 30923, 57577, 59813, 75293, 78217, 143273, 161551, 187357, 386971, 401999, 473903, 978809, 1016821, 1279981, 1329689, 2435641, 3185069, 6160739, 8056351, 16639753, 17285957, 41405897, 104732563, 136957967, 1780453571]

約数ペア:

[(1, 1780453571), (13, 136957967), (17, 104732563), (43, 41405897), (103, 17285957), (107, 16639753), (221, 8056351), (289, 6160739), (559, 3185069), (731, 2435641), (1339, 1329689), (1391, 1279981), (1751, 1016821), (1819, 978809), (3757, 473903), (4429, 401999), (4601, 386971), (9503, 187357), (11021, 161551), (12427, 143273), (22763, 78217), (23647, 75293), (29767, 59813), (30923, 57577)]