20165904135

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{181}}^1\times {\mathrm{659}}^1$

素因数の和:898

約数の個数: 144

約数和(自身を含む): 40269509280

約数和(自身を除く): 20103605145

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 181, 195, 221, 255, 289, 543, 585, 659, 663, 765, 867, 905, 1105, 1445, 1629, 1977, 1989, 2353, 2601, 2715, 3077, 3295, 3315, 3757, 4335, 5931, 7059, 8145, 8567, 9231, 9885, 9945, 11203, 11271, 11765, 13005, 15385, 18785, 21177, 25701, 27693, 29655, 33609, 33813, 35295, 40001, 42835, 46155, 52309, 56015, 56355, 77103, 100827, 105885, 119279, 120003, 128505, 138465, 145639, 156927, 168045, 169065, 190451, 200005, 261545, 357837, 360009, 385515, 436917, 470781, 504135, 571353, 596395, 600015, 680017, 728195, 784635, 952255, 1073511, 1310751, 1550627, 1714059, 1789185, 1800045, 2027743, 2040051, 2184585, 2353905, 2475863, 2856765, 3400085, 4651881, 5367555, 6083229, 6120153, 6553755, 7427589, 7753135, 8570295, 10138715, 10200255, 12379315, 13955643, 18249687, 22282767, 23259405, 26360659, 30416145, 30600765, 34471631, 37137945, 69778215, 79081977, 91248435, 103414893, 111413835, 131803295, 172358155, 237245931, 310244679, 395409885, 448131203, 517074465, 1186229655, 1344393609, 1551223395, 2240656015, 4033180827, 6721968045, 20165904135]

約数ペア:

[(1, 20165904135), (3, 6721968045), (5, 4033180827), (9, 2240656015), (13, 1551223395), (15, 1344393609), (17, 1186229655), (39, 517074465), (45, 448131203), (51, 395409885), (65, 310244679), (85, 237245931), (117, 172358155), (153, 131803295), (181, 111413835), (195, 103414893), (221, 91248435), (255, 79081977), (289, 69778215), (543, 37137945), (585, 34471631), (659, 30600765), (663, 30416145), (765, 26360659), (867, 23259405), (905, 22282767), (1105, 18249687), (1445, 13955643), (1629, 12379315), (1977, 10200255), (1989, 10138715), (2353, 8570295), (2601, 7753135), (2715, 7427589), (3077, 6553755), (3295, 6120153), (3315, 6083229), (3757, 5367555), (4335, 4651881), (5931, 3400085), (7059, 2856765), (8145, 2475863), (8567, 2353905), (9231, 2184585), (9885, 2040051), (9945, 2027743), (11203, 1800045), (11271, 1789185), (11765, 1714059), (13005, 1550627), (15385, 1310751), (18785, 1073511), (21177, 952255), (25701, 784635), (27693, 728195), (29655, 680017), (33609, 600015), (33813, 596395), (35295, 571353), (40001, 504135), (42835, 470781), (46155, 436917), (52309, 385515), (56015, 360009), (56355, 357837), (77103, 261545), (100827, 200005), (105885, 190451), (119279, 169065), (120003, 168045), (128505, 156927), (138465, 145639)]