20003040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{479}}^1$

素因数の和:529

約数の個数: 144

約数和(自身を含む): 70761600

約数和(自身を除く): 50758560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 96, 116, 120, 144, 145, 160, 174, 180, 232, 240, 261, 288, 290, 348, 360, 435, 464, 479, 480, 522, 580, 696, 720, 870, 928, 958, 1044, 1160, 1305, 1392, 1437, 1440, 1740, 1916, 2088, 2320, 2395, 2610, 2784, 2874, 3480, 3832, 4176, 4311, 4640, 4790, 5220, 5748, 6960, 7185, 7664, 8352, 8622, 9580, 10440, 11496, 13891, 13920, 14370, 15328, 17244, 19160, 20880, 21555, 22992, 27782, 28740, 34488, 38320, 41673, 41760, 43110, 45984, 55564, 57480, 68976, 69455, 76640, 83346, 86220, 111128, 114960, 125019, 137952, 138910, 166692, 172440, 208365, 222256, 229920, 250038, 277820, 333384, 344880, 416730, 444512, 500076, 555640, 625095, 666768, 689760, 833460, 1000152, 1111280, 1250190, 1333536, 1666920, 2000304, 2222560, 2500380, 3333840, 4000608, 5000760, 6667680, 10001520, 20003040]

約数ペア:

[(1, 20003040), (2, 10001520), (3, 6667680), (4, 5000760), (5, 4000608), (6, 3333840), (8, 2500380), (9, 2222560), (10, 2000304), (12, 1666920), (15, 1333536), (16, 1250190), (18, 1111280), (20, 1000152), (24, 833460), (29, 689760), (30, 666768), (32, 625095), (36, 555640), (40, 500076), (45, 444512), (48, 416730), (58, 344880), (60, 333384), (72, 277820), (80, 250038), (87, 229920), (90, 222256), (96, 208365), (116, 172440), (120, 166692), (144, 138910), (145, 137952), (160, 125019), (174, 114960), (180, 111128), (232, 86220), (240, 83346), (261, 76640), (288, 69455), (290, 68976), (348, 57480), (360, 55564), (435, 45984), (464, 43110), (479, 41760), (480, 41673), (522, 38320), (580, 34488), (696, 28740), (720, 27782), (870, 22992), (928, 21555), (958, 20880), (1044, 19160), (1160, 17244), (1305, 15328), (1392, 14370), (1437, 13920), (1440, 13891), (1740, 11496), (1916, 10440), (2088, 9580), (2320, 8622), (2395, 8352), (2610, 7664), (2784, 7185), (2874, 6960), (3480, 5748), (3832, 5220), (4176, 4790), (4311, 4640)]