1665431680

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1307}}^1$

素因数の和:1518

約数の個数: 128

約数和(自身を含む): 4370708160

約数和(自身を除く): 2705276480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 181, 220, 320, 352, 362, 440, 640, 704, 724, 880, 905, 1307, 1408, 1448, 1760, 1810, 1991, 2614, 2896, 3520, 3620, 3982, 5228, 5792, 6535, 7040, 7240, 7964, 9955, 10456, 11584, 13070, 14377, 14480, 15928, 19910, 20912, 23168, 26140, 28754, 28960, 31856, 39820, 41824, 52280, 57508, 57920, 63712, 71885, 79640, 83648, 104560, 115016, 115840, 127424, 143770, 159280, 167296, 209120, 230032, 236567, 254848, 287540, 318560, 418240, 460064, 473134, 575080, 637120, 836480, 920128, 946268, 1150160, 1182835, 1274240, 1840256, 1892536, 2300320, 2365670, 2602237, 3785072, 4600640, 4731340, 5204474, 7570144, 9201280, 9462680, 10408948, 13011185, 15140288, 18925360, 20817896, 26022370, 30280576, 37850720, 41635792, 52044740, 75701440, 83271584, 104089480, 151402880, 166543168, 208178960, 333086336, 416357920, 832715840, 1665431680]

約数ペア:

[(1, 1665431680), (2, 832715840), (4, 416357920), (5, 333086336), (8, 208178960), (10, 166543168), (11, 151402880), (16, 104089480), (20, 83271584), (22, 75701440), (32, 52044740), (40, 41635792), (44, 37850720), (55, 30280576), (64, 26022370), (80, 20817896), (88, 18925360), (110, 15140288), (128, 13011185), (160, 10408948), (176, 9462680), (181, 9201280), (220, 7570144), (320, 5204474), (352, 4731340), (362, 4600640), (440, 3785072), (640, 2602237), (704, 2365670), (724, 2300320), (880, 1892536), (905, 1840256), (1307, 1274240), (1408, 1182835), (1448, 1150160), (1760, 946268), (1810, 920128), (1991, 836480), (2614, 637120), (2896, 575080), (3520, 473134), (3620, 460064), (3982, 418240), (5228, 318560), (5792, 287540), (6535, 254848), (7040, 236567), (7240, 230032), (7964, 209120), (9955, 167296), (10456, 159280), (11584, 143770), (13070, 127424), (14377, 115840), (14480, 115016), (15928, 104560), (19910, 83648), (20912, 79640), (23168, 71885), (26140, 63712), (28754, 57920), (28960, 57508), (31856, 52280), (39820, 41824)]