20779778888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7617221}}^1$

素因数の和:7617269

約数の個数: 32

約数和(自身を含む): 43875198720

約数和(自身を除く): 23095419832

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 124, 248, 341, 682, 1364, 2728, 7617221, 15234442, 30468884, 60937768, 83789431, 167578862, 236133851, 335157724, 472267702, 670315448, 944535404, 1889070808, 2597472361, 5194944722, 10389889444, 20779778888]

約数ペア:

[(1, 20779778888), (2, 10389889444), (4, 5194944722), (8, 2597472361), (11, 1889070808), (22, 944535404), (31, 670315448), (44, 472267702), (62, 335157724), (88, 236133851), (124, 167578862), (248, 83789431), (341, 60937768), (682, 30468884), (1364, 15234442), (2728, 7617221)]