81072320

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2129}}^1$

素因数の和:2170

約数の個数: 112

約数和(自身を含む): 233720640

約数和(自身を除く): 152648320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 320, 340, 448, 476, 544, 560, 595, 680, 952, 1088, 1120, 1190, 1360, 1904, 2129, 2240, 2380, 2720, 3808, 4258, 4760, 5440, 7616, 8516, 9520, 10645, 14903, 17032, 19040, 21290, 29806, 34064, 36193, 38080, 42580, 59612, 68128, 72386, 74515, 85160, 119224, 136256, 144772, 149030, 170320, 180965, 238448, 253351, 289544, 298060, 340640, 361930, 476896, 506702, 579088, 596120, 681280, 723860, 953792, 1013404, 1158176, 1192240, 1266755, 1447720, 2026808, 2316352, 2384480, 2533510, 2895440, 4053616, 4768960, 5067020, 5790880, 8107232, 10134040, 11581760, 16214464, 20268080, 40536160, 81072320]

約数ペア:

[(1, 81072320), (2, 40536160), (4, 20268080), (5, 16214464), (7, 11581760), (8, 10134040), (10, 8107232), (14, 5790880), (16, 5067020), (17, 4768960), (20, 4053616), (28, 2895440), (32, 2533510), (34, 2384480), (35, 2316352), (40, 2026808), (56, 1447720), (64, 1266755), (68, 1192240), (70, 1158176), (80, 1013404), (85, 953792), (112, 723860), (119, 681280), (136, 596120), (140, 579088), (160, 506702), (170, 476896), (224, 361930), (238, 340640), (272, 298060), (280, 289544), (320, 253351), (340, 238448), (448, 180965), (476, 170320), (544, 149030), (560, 144772), (595, 136256), (680, 119224), (952, 85160), (1088, 74515), (1120, 72386), (1190, 68128), (1360, 59612), (1904, 42580), (2129, 38080), (2240, 36193), (2380, 34064), (2720, 29806), (3808, 21290), (4258, 19040), (4760, 17032), (5440, 14903), (7616, 10645), (8516, 9520)]