12781440

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{317}}^1$

素因数の和:349

約数の個数: 192

約数和(自身を含む): 50600160

約数和(自身を除く): 37818720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 317, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 634, 640, 672, 720, 840, 896, 951, 960, 1008, 1120, 1152, 1260, 1268, 1344, 1440, 1585, 1680, 1902, 1920, 2016, 2219, 2240, 2520, 2536, 2688, 2853, 2880, 3170, 3360, 3804, 4032, 4438, 4480, 4755, 5040, 5072, 5706, 5760, 6340, 6657, 6720, 7608, 8064, 8876, 9510, 10080, 10144, 11095, 11412, 12680, 13314, 13440, 14265, 15216, 17752, 19020, 19971, 20160, 20288, 22190, 22824, 25360, 26628, 28530, 30432, 33285, 35504, 38040, 39942, 40320, 40576, 44380, 45648, 50720, 53256, 57060, 60864, 66570, 71008, 76080, 79884, 88760, 91296, 99855, 101440, 106512, 114120, 121728, 133140, 142016, 152160, 159768, 177520, 182592, 199710, 202880, 213024, 228240, 266280, 284032, 304320, 319536, 355040, 365184, 399420, 426048, 456480, 532560, 608640, 639072, 710080, 798840, 852096, 912960, 1065120, 1278144, 1420160, 1597680, 1825920, 2130240, 2556288, 3195360, 4260480, 6390720, 12781440]

約数ペア:

[(1, 12781440), (2, 6390720), (3, 4260480), (4, 3195360), (5, 2556288), (6, 2130240), (7, 1825920), (8, 1597680), (9, 1420160), (10, 1278144), (12, 1065120), (14, 912960), (15, 852096), (16, 798840), (18, 710080), (20, 639072), (21, 608640), (24, 532560), (28, 456480), (30, 426048), (32, 399420), (35, 365184), (36, 355040), (40, 319536), (42, 304320), (45, 284032), (48, 266280), (56, 228240), (60, 213024), (63, 202880), (64, 199710), (70, 182592), (72, 177520), (80, 159768), (84, 152160), (90, 142016), (96, 133140), (105, 121728), (112, 114120), (120, 106512), (126, 101440), (128, 99855), (140, 91296), (144, 88760), (160, 79884), (168, 76080), (180, 71008), (192, 66570), (210, 60864), (224, 57060), (240, 53256), (252, 50720), (280, 45648), (288, 44380), (315, 40576), (317, 40320), (320, 39942), (336, 38040), (360, 35504), (384, 33285), (420, 30432), (448, 28530), (480, 26628), (504, 25360), (560, 22824), (576, 22190), (630, 20288), (634, 20160), (640, 19971), (672, 19020), (720, 17752), (840, 15216), (896, 14265), (951, 13440), (960, 13314), (1008, 12680), (1120, 11412), (1152, 11095), (1260, 10144), (1268, 10080), (1344, 9510), (1440, 8876), (1585, 8064), (1680, 7608), (1902, 6720), (1920, 6657), (2016, 6340), (2219, 5760), (2240, 5706), (2520, 5072), (2536, 5040), (2688, 4755), (2853, 4480), (2880, 4438), (3170, 4032), (3360, 3804)]