18486020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5741}}^1$

素因数の和:5780

約数の個数: 48

約数和(自身を含む): 46303488

約数和(自身を除く): 27817468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 5741, 11482, 22964, 28705, 40187, 57410, 80374, 114820, 132043, 160748, 200935, 264086, 401870, 528172, 660215, 803740, 924301, 1320430, 1848602, 2640860, 3697204, 4621505, 9243010, 18486020]

約数ペア:

[(1, 18486020), (2, 9243010), (4, 4621505), (5, 3697204), (7, 2640860), (10, 1848602), (14, 1320430), (20, 924301), (23, 803740), (28, 660215), (35, 528172), (46, 401870), (70, 264086), (92, 200935), (115, 160748), (140, 132043), (161, 114820), (230, 80374), (322, 57410), (460, 40187), (644, 28705), (805, 22964), (1610, 11482), (3220, 5741)]