28315215

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 51105600

約数和(自身を除く): 22790385

約数列:

[1, 3, 5, 9, 15, 41, 45, 103, 123, 149, 205, 309, 369, 447, 515, 615, 745, 927, 1341, 1545, 1845, 2235, 4223, 4635, 6109, 6705, 12669, 15347, 18327, 21115, 30545, 38007, 46041, 54981, 63345, 76735, 91635, 138123, 190035, 230205, 274905, 629227, 690615, 1887681, 3146135, 5663043, 9438405, 28315215]

約数ペア:

[(1, 28315215), (3, 9438405), (5, 5663043), (9, 3146135), (15, 1887681), (41, 690615), (45, 629227), (103, 274905), (123, 230205), (149, 190035), (205, 138123), (309, 91635), (369, 76735), (447, 63345), (515, 54981), (615, 46041), (745, 38007), (927, 30545), (1341, 21115), (1545, 18327), (1845, 15347), (2235, 12669), (4223, 6705), (4635, 6109)]