155222020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{408479}}^1$

素因数の和:408507

約数の個数: 24

約数和(自身を含む): 343123200

約数和(自身を除く): 187901180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 408479, 816958, 1633916, 2042395, 4084790, 7761101, 8169580, 15522202, 31044404, 38805505, 77611010, 155222020]

約数ペア:

[(1, 155222020), (2, 77611010), (4, 38805505), (5, 31044404), (10, 15522202), (19, 8169580), (20, 7761101), (38, 4084790), (76, 2042395), (95, 1633916), (190, 816958), (380, 408479)]