20165239120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3089}}^1\times {\mathrm{6277}}^1$

素因数の和:9392

約数の個数: 80

約数和(自身を含む): 50515048080

約数和(自身を除く): 30349808960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 3089, 6178, 6277, 12356, 12554, 15445, 24712, 25108, 30890, 31385, 40157, 49424, 50216, 61780, 62770, 80314, 81601, 100432, 123560, 125540, 160628, 163202, 200785, 247120, 251080, 321256, 326404, 401570, 408005, 502160, 642512, 652808, 803140, 816010, 1305616, 1606280, 1632020, 3212560, 3264040, 6528080, 19389653, 38779306, 77558612, 96948265, 155117224, 193896530, 252065489, 310234448, 387793060, 504130978, 775586120, 1008261956, 1260327445, 1551172240, 2016523912, 2520654890, 4033047824, 5041309780, 10082619560, 20165239120]

約数ペア:

[(1, 20165239120), (2, 10082619560), (4, 5041309780), (5, 4033047824), (8, 2520654890), (10, 2016523912), (13, 1551172240), (16, 1260327445), (20, 1008261956), (26, 775586120), (40, 504130978), (52, 387793060), (65, 310234448), (80, 252065489), (104, 193896530), (130, 155117224), (208, 96948265), (260, 77558612), (520, 38779306), (1040, 19389653), (3089, 6528080), (6178, 3264040), (6277, 3212560), (12356, 1632020), (12554, 1606280), (15445, 1305616), (24712, 816010), (25108, 803140), (30890, 652808), (31385, 642512), (40157, 502160), (49424, 408005), (50216, 401570), (61780, 326404), (62770, 321256), (80314, 251080), (81601, 247120), (100432, 200785), (123560, 163202), (125540, 160628)]