81619920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1303}}^1$

素因数の和:1354

約数の個数: 160

約数和(自身を含む): 291052800

約数和(自身を除く): 209432880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 36, 40, 45, 48, 54, 58, 60, 72, 80, 87, 90, 108, 116, 120, 135, 144, 145, 174, 180, 216, 232, 240, 261, 270, 290, 348, 360, 432, 435, 464, 522, 540, 580, 696, 720, 783, 870, 1044, 1080, 1160, 1303, 1305, 1392, 1566, 1740, 2088, 2160, 2320, 2606, 2610, 3132, 3480, 3909, 3915, 4176, 5212, 5220, 6264, 6515, 6960, 7818, 7830, 10424, 10440, 11727, 12528, 13030, 15636, 15660, 19545, 20848, 20880, 23454, 26060, 31272, 31320, 35181, 37787, 39090, 46908, 52120, 58635, 62544, 62640, 70362, 75574, 78180, 93816, 104240, 113361, 117270, 140724, 151148, 156360, 175905, 187632, 188935, 226722, 234540, 281448, 302296, 312720, 340083, 351810, 377870, 453444, 469080, 562896, 566805, 604592, 680166, 703620, 755740, 906888, 938160, 1020249, 1133610, 1360332, 1407240, 1511480, 1700415, 1813776, 2040498, 2267220, 2720664, 2814480, 3022960, 3400830, 4080996, 4534440, 5101245, 5441328, 6801660, 8161992, 9068880, 10202490, 13603320, 16323984, 20404980, 27206640, 40809960, 81619920]

約数ペア:

[(1, 81619920), (2, 40809960), (3, 27206640), (4, 20404980), (5, 16323984), (6, 13603320), (8, 10202490), (9, 9068880), (10, 8161992), (12, 6801660), (15, 5441328), (16, 5101245), (18, 4534440), (20, 4080996), (24, 3400830), (27, 3022960), (29, 2814480), (30, 2720664), (36, 2267220), (40, 2040498), (45, 1813776), (48, 1700415), (54, 1511480), (58, 1407240), (60, 1360332), (72, 1133610), (80, 1020249), (87, 938160), (90, 906888), (108, 755740), (116, 703620), (120, 680166), (135, 604592), (144, 566805), (145, 562896), (174, 469080), (180, 453444), (216, 377870), (232, 351810), (240, 340083), (261, 312720), (270, 302296), (290, 281448), (348, 234540), (360, 226722), (432, 188935), (435, 187632), (464, 175905), (522, 156360), (540, 151148), (580, 140724), (696, 117270), (720, 113361), (783, 104240), (870, 93816), (1044, 78180), (1080, 75574), (1160, 70362), (1303, 62640), (1305, 62544), (1392, 58635), (1566, 52120), (1740, 46908), (2088, 39090), (2160, 37787), (2320, 35181), (2606, 31320), (2610, 31272), (3132, 26060), (3480, 23454), (3909, 20880), (3915, 20848), (4176, 19545), (5212, 15660), (5220, 15636), (6264, 13030), (6515, 12528), (6960, 11727), (7818, 10440), (7830, 10424)]