161315691280

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1103}}^1\times {\mathrm{17749}}^1$

素因数の和:18968

約数の個数: 80

約数和(自身を含む): 379065024000

約数和(自身を除く): 217749332720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1103, 1648, 2060, 2206, 4120, 4412, 5515, 8240, 8824, 11030, 17648, 17749, 22060, 35498, 44120, 70996, 88240, 88745, 113609, 141992, 177490, 227218, 283984, 354980, 454436, 568045, 709960, 908872, 1136090, 1419920, 1817744, 1828147, 2272180, 3656294, 4544360, 7312588, 9088720, 9140735, 14625176, 18281470, 19577147, 29250352, 36562940, 39154294, 73125880, 78308588, 97885735, 146251760, 156617176, 195771470, 313234352, 391542940, 783085880, 1566171760, 2016446141, 4032892282, 8065784564, 10082230705, 16131569128, 20164461410, 32263138256, 40328922820, 80657845640, 161315691280]

約数ペア:

[(1, 161315691280), (2, 80657845640), (4, 40328922820), (5, 32263138256), (8, 20164461410), (10, 16131569128), (16, 10082230705), (20, 8065784564), (40, 4032892282), (80, 2016446141), (103, 1566171760), (206, 783085880), (412, 391542940), (515, 313234352), (824, 195771470), (1030, 156617176), (1103, 146251760), (1648, 97885735), (2060, 78308588), (2206, 73125880), (4120, 39154294), (4412, 36562940), (5515, 29250352), (8240, 19577147), (8824, 18281470), (11030, 14625176), (17648, 9140735), (17749, 9088720), (22060, 7312588), (35498, 4544360), (44120, 3656294), (70996, 2272180), (88240, 1828147), (88745, 1817744), (113609, 1419920), (141992, 1136090), (177490, 908872), (227218, 709960), (283984, 568045), (354980, 454436)]