20165718320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{709}}^1\times {\mathrm{32321}}^1$

素因数の和:33054

約数の個数: 80

約数和(自身を含む): 51221319840

約数和(自身を除く): 31055601520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 709, 880, 1418, 2836, 3545, 5672, 7090, 7799, 11344, 14180, 15598, 28360, 31196, 32321, 38995, 56720, 62392, 64642, 77990, 124784, 129284, 155980, 161605, 258568, 311960, 323210, 355531, 517136, 623920, 646420, 711062, 1292840, 1422124, 1777655, 2585680, 2844248, 3555310, 5688496, 7110620, 14221240, 22915589, 28442480, 45831178, 91662356, 114577945, 183324712, 229155890, 252071479, 366649424, 458311780, 504142958, 916623560, 1008285916, 1260357395, 1833247120, 2016571832, 2520714790, 4033143664, 5041429580, 10082859160, 20165718320]

約数ペア:

[(1, 20165718320), (2, 10082859160), (4, 5041429580), (5, 4033143664), (8, 2520714790), (10, 2016571832), (11, 1833247120), (16, 1260357395), (20, 1008285916), (22, 916623560), (40, 504142958), (44, 458311780), (55, 366649424), (80, 252071479), (88, 229155890), (110, 183324712), (176, 114577945), (220, 91662356), (440, 45831178), (709, 28442480), (880, 22915589), (1418, 14221240), (2836, 7110620), (3545, 5688496), (5672, 3555310), (7090, 2844248), (7799, 2585680), (11344, 1777655), (14180, 1422124), (15598, 1292840), (28360, 711062), (31196, 646420), (32321, 623920), (38995, 517136), (56720, 355531), (62392, 323210), (64642, 311960), (77990, 258568), (124784, 161605), (129284, 155980)]