28216815

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:200

約数の個数: 64

約数和(自身を含む): 52157952

約数和(自身を除く): 23941137

約数列:

[1, 3, 5, 11, 15, 33, 41, 43, 55, 97, 123, 129, 165, 205, 215, 291, 451, 473, 485, 615, 645, 1067, 1353, 1419, 1455, 1763, 2255, 2365, 3201, 3977, 4171, 5289, 5335, 6765, 7095, 8815, 11931, 12513, 16005, 19393, 19885, 20855, 26445, 43747, 45881, 58179, 59655, 62565, 96965, 131241, 137643, 171011, 218735, 229405, 290895, 513033, 656205, 688215, 855055, 1881121, 2565165, 5643363, 9405605, 28216815]

約数ペア:

[(1, 28216815), (3, 9405605), (5, 5643363), (11, 2565165), (15, 1881121), (33, 855055), (41, 688215), (43, 656205), (55, 513033), (97, 290895), (123, 229405), (129, 218735), (165, 171011), (205, 137643), (215, 131241), (291, 96965), (451, 62565), (473, 59655), (485, 58179), (615, 45881), (645, 43747), (1067, 26445), (1353, 20855), (1419, 19885), (1455, 19393), (1763, 16005), (2255, 12513), (2365, 11931), (3201, 8815), (3977, 7095), (4171, 6765), (5289, 5335)]