20109045

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 38071296

約数和(自身を除く): 17962251

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 67, 85, 107, 165, 187, 201, 255, 321, 335, 535, 561, 737, 935, 1005, 1139, 1177, 1605, 1819, 2211, 2805, 3417, 3531, 3685, 5457, 5695, 5885, 7169, 9095, 11055, 12529, 17085, 17655, 20009, 21507, 27285, 35845, 37587, 60027, 62645, 78859, 100045, 107535, 121873, 187935, 236577, 300135, 365619, 394295, 609365, 1182885, 1340603, 1828095, 4021809, 6703015, 20109045]

約数ペア:

[(1, 20109045), (3, 6703015), (5, 4021809), (11, 1828095), (15, 1340603), (17, 1182885), (33, 609365), (51, 394295), (55, 365619), (67, 300135), (85, 236577), (107, 187935), (165, 121873), (187, 107535), (201, 100045), (255, 78859), (321, 62645), (335, 60027), (535, 37587), (561, 35845), (737, 27285), (935, 21507), (1005, 20009), (1139, 17655), (1177, 17085), (1605, 12529), (1819, 11055), (2211, 9095), (2805, 7169), (3417, 5885), (3531, 5695), (3685, 5457)]