209304255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 374243328

約数和(自身を除く): 164939073

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 127, 255, 281, 345, 381, 391, 635, 843, 1173, 1405, 1905, 1955, 2159, 2921, 4215, 4777, 5865, 6463, 6477, 8763, 10795, 14331, 14605, 19389, 23885, 32315, 32385, 35687, 43815, 49657, 71655, 96945, 107061, 109871, 148971, 178435, 248285, 329613, 535305, 549355, 606679, 744855, 820801, 1648065, 1820037, 2462403, 3033395, 4104005, 9100185, 12312015, 13953617, 41860851, 69768085, 209304255]

約数ペア:

[(1, 209304255), (3, 69768085), (5, 41860851), (15, 13953617), (17, 12312015), (23, 9100185), (51, 4104005), (69, 3033395), (85, 2462403), (115, 1820037), (127, 1648065), (255, 820801), (281, 744855), (345, 606679), (381, 549355), (391, 535305), (635, 329613), (843, 248285), (1173, 178435), (1405, 148971), (1905, 109871), (1955, 107061), (2159, 96945), (2921, 71655), (4215, 49657), (4777, 43815), (5865, 35687), (6463, 32385), (6477, 32315), (8763, 23885), (10795, 19389), (14331, 14605)]