2019911290

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{25309}}^1$

素因数の和:25686

約数の個数: 32

約数和(自身を含む): 3805004160

約数和(自身を除く): 1785092870

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 347, 694, 1735, 3470, 7981, 15962, 25309, 39905, 50618, 79810, 126545, 253090, 582107, 1164214, 2910535, 5821070, 8782223, 17564446, 43911115, 87822230, 201991129, 403982258, 1009955645, 2019911290]

約数ペア:

[(1, 2019911290), (2, 1009955645), (5, 403982258), (10, 201991129), (23, 87822230), (46, 43911115), (115, 17564446), (230, 8782223), (347, 5821070), (694, 2910535), (1735, 1164214), (3470, 582107), (7981, 253090), (15962, 126545), (25309, 79810), (39905, 50618)]