20131168720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{187931}}^1$

素因数の和:188060

約数の個数: 80

約数和(自身を含む): 50894992512

約数和(自身を除く): 30763823792

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 103, 104, 130, 206, 208, 260, 412, 515, 520, 824, 1030, 1040, 1339, 1648, 2060, 2678, 4120, 5356, 6695, 8240, 10712, 13390, 21424, 26780, 53560, 107120, 187931, 375862, 751724, 939655, 1503448, 1879310, 2443103, 3006896, 3758620, 4886206, 7517240, 9772412, 12215515, 15034480, 19356893, 19544824, 24431030, 38713786, 39089648, 48862060, 77427572, 96784465, 97724120, 154855144, 193568930, 195448240, 251639609, 309710288, 387137860, 503279218, 774275720, 1006558436, 1258198045, 1548551440, 2013116872, 2516396090, 4026233744, 5032792180, 10065584360, 20131168720]

約数ペア:

[(1, 20131168720), (2, 10065584360), (4, 5032792180), (5, 4026233744), (8, 2516396090), (10, 2013116872), (13, 1548551440), (16, 1258198045), (20, 1006558436), (26, 774275720), (40, 503279218), (52, 387137860), (65, 309710288), (80, 251639609), (103, 195448240), (104, 193568930), (130, 154855144), (206, 97724120), (208, 96784465), (260, 77427572), (412, 48862060), (515, 39089648), (520, 38713786), (824, 24431030), (1030, 19544824), (1040, 19356893), (1339, 15034480), (1648, 12215515), (2060, 9772412), (2678, 7517240), (4120, 4886206), (5356, 3758620), (6695, 3006896), (8240, 2443103), (10712, 1879310), (13390, 1503448), (21424, 939655), (26780, 751724), (53560, 375862), (107120, 187931)]