20197708120

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{911}}^1\times {\mathrm{3319}}^1$

素因数の和:4408

約数の個数: 64

約数和(自身を含む): 45780940800

約数和(自身を除く): 25583232680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 911, 1336, 1670, 1822, 3319, 3340, 3644, 4555, 6638, 6680, 7288, 9110, 13276, 16595, 18220, 26552, 33190, 36440, 66380, 132760, 152137, 304274, 554273, 608548, 760685, 1108546, 1217096, 1521370, 2217092, 2771365, 3023609, 3042740, 4434184, 5542730, 6047218, 6085480, 11085460, 12094436, 15118045, 22170920, 24188872, 30236090, 60472180, 120944360, 504942703, 1009885406, 2019770812, 2524713515, 4039541624, 5049427030, 10098854060, 20197708120]

約数ペア:

[(1, 20197708120), (2, 10098854060), (4, 5049427030), (5, 4039541624), (8, 2524713515), (10, 2019770812), (20, 1009885406), (40, 504942703), (167, 120944360), (334, 60472180), (668, 30236090), (835, 24188872), (911, 22170920), (1336, 15118045), (1670, 12094436), (1822, 11085460), (3319, 6085480), (3340, 6047218), (3644, 5542730), (4555, 4434184), (6638, 3042740), (6680, 3023609), (7288, 2771365), (9110, 2217092), (13276, 1521370), (16595, 1217096), (18220, 1108546), (26552, 760685), (33190, 608548), (36440, 554273), (66380, 304274), (132760, 152137)]