205744539

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{523}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 371847168

約数和(自身を除く): 166102629

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 131, 143, 231, 273, 393, 429, 523, 917, 1001, 1441, 1569, 1703, 2751, 3003, 3661, 4323, 5109, 5753, 6799, 10087, 10983, 11921, 17259, 18733, 20397, 30261, 35763, 40271, 47593, 56199, 68513, 74789, 120813, 131131, 142779, 205539, 224367, 393393, 479591, 523523, 753643, 890669, 1438773, 1570569, 2260929, 2672007, 5275501, 6234683, 9797359, 15826503, 18704049, 29392077, 68581513, 205744539]

約数ペア:

[(1, 205744539), (3, 68581513), (7, 29392077), (11, 18704049), (13, 15826503), (21, 9797359), (33, 6234683), (39, 5275501), (77, 2672007), (91, 2260929), (131, 1570569), (143, 1438773), (231, 890669), (273, 753643), (393, 523523), (429, 479591), (523, 393393), (917, 224367), (1001, 205539), (1441, 142779), (1569, 131131), (1703, 120813), (2751, 74789), (3003, 68513), (3661, 56199), (4323, 47593), (5109, 40271), (5753, 35763), (6799, 30261), (10087, 20397), (10983, 18733), (11921, 17259)]