20407841260

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1\times {\mathrm{35129}}^1$

素因数の和:36106

約数の個数: 48

約数和(自身を含む): 44287407360

約数和(自身を除く): 23879566100

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 937, 1874, 3748, 4685, 9370, 18740, 29047, 35129, 58094, 70258, 116188, 140516, 145235, 175645, 290470, 351290, 580940, 702580, 1088999, 2177998, 4355996, 5444995, 10889990, 21779980, 32915873, 65831746, 131663492, 164579365, 329158730, 658317460, 1020392063, 2040784126, 4081568252, 5101960315, 10203920630, 20407841260]

約数ペア:

[(1, 20407841260), (2, 10203920630), (4, 5101960315), (5, 4081568252), (10, 2040784126), (20, 1020392063), (31, 658317460), (62, 329158730), (124, 164579365), (155, 131663492), (310, 65831746), (620, 32915873), (937, 21779980), (1874, 10889990), (3748, 5444995), (4685, 4355996), (9370, 2177998), (18740, 1088999), (29047, 702580), (35129, 580940), (58094, 351290), (70258, 290470), (116188, 175645), (140516, 145235)]