19262020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{313}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 43203888

約数和(自身を除く): 23941868

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 181, 313, 340, 362, 626, 724, 905, 1252, 1565, 1810, 3077, 3130, 3620, 5321, 6154, 6260, 10642, 12308, 15385, 21284, 26605, 30770, 53210, 56653, 61540, 106420, 113306, 226612, 283265, 566530, 963101, 1133060, 1926202, 3852404, 4815505, 9631010, 19262020]

約数ペア:

[(1, 19262020), (2, 9631010), (4, 4815505), (5, 3852404), (10, 1926202), (17, 1133060), (20, 963101), (34, 566530), (68, 283265), (85, 226612), (170, 113306), (181, 106420), (313, 61540), (340, 56653), (362, 53210), (626, 30770), (724, 26605), (905, 21284), (1252, 15385), (1565, 12308), (1810, 10642), (3077, 6260), (3130, 6154), (3620, 5321)]