21045600

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:142

約数の個数: 216

約数和(自身を含む): 77182560

約数和(自身を除く): 56136960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 37, 40, 45, 48, 50, 60, 72, 74, 75, 79, 80, 90, 96, 100, 111, 120, 144, 148, 150, 158, 160, 180, 185, 200, 222, 225, 237, 240, 288, 296, 300, 316, 333, 360, 370, 395, 400, 444, 450, 474, 480, 555, 592, 600, 632, 666, 711, 720, 740, 790, 800, 888, 900, 925, 948, 1110, 1184, 1185, 1200, 1264, 1332, 1422, 1440, 1480, 1580, 1665, 1776, 1800, 1850, 1896, 1975, 2220, 2370, 2400, 2528, 2664, 2775, 2844, 2923, 2960, 3160, 3330, 3552, 3555, 3600, 3700, 3792, 3950, 4440, 4740, 5328, 5550, 5688, 5846, 5920, 5925, 6320, 6660, 7110, 7200, 7400, 7584, 7900, 8325, 8769, 8880, 9480, 10656, 11100, 11376, 11692, 11850, 12640, 13320, 14220, 14615, 14800, 15800, 16650, 17538, 17760, 17775, 18960, 22200, 22752, 23384, 23700, 26307, 26640, 28440, 29230, 29600, 31600, 33300, 35076, 35550, 37920, 43845, 44400, 46768, 47400, 52614, 53280, 56880, 58460, 63200, 66600, 70152, 71100, 73075, 87690, 88800, 93536, 94800, 105228, 113760, 116920, 131535, 133200, 140304, 142200, 146150, 175380, 189600, 210456, 219225, 233840, 263070, 266400, 280608, 284400, 292300, 350760, 420912, 438450, 467680, 526140, 568800, 584600, 657675, 701520, 841824, 876900, 1052280, 1169200, 1315350, 1403040, 1753800, 2104560, 2338400, 2630700, 3507600, 4209120, 5261400, 7015200, 10522800, 21045600]

約数ペア:

[(1, 21045600), (2, 10522800), (3, 7015200), (4, 5261400), (5, 4209120), (6, 3507600), (8, 2630700), (9, 2338400), (10, 2104560), (12, 1753800), (15, 1403040), (16, 1315350), (18, 1169200), (20, 1052280), (24, 876900), (25, 841824), (30, 701520), (32, 657675), (36, 584600), (37, 568800), (40, 526140), (45, 467680), (48, 438450), (50, 420912), (60, 350760), (72, 292300), (74, 284400), (75, 280608), (79, 266400), (80, 263070), (90, 233840), (96, 219225), (100, 210456), (111, 189600), (120, 175380), (144, 146150), (148, 142200), (150, 140304), (158, 133200), (160, 131535), (180, 116920), (185, 113760), (200, 105228), (222, 94800), (225, 93536), (237, 88800), (240, 87690), (288, 73075), (296, 71100), (300, 70152), (316, 66600), (333, 63200), (360, 58460), (370, 56880), (395, 53280), (400, 52614), (444, 47400), (450, 46768), (474, 44400), (480, 43845), (555, 37920), (592, 35550), (600, 35076), (632, 33300), (666, 31600), (711, 29600), (720, 29230), (740, 28440), (790, 26640), (800, 26307), (888, 23700), (900, 23384), (925, 22752), (948, 22200), (1110, 18960), (1184, 17775), (1185, 17760), (1200, 17538), (1264, 16650), (1332, 15800), (1422, 14800), (1440, 14615), (1480, 14220), (1580, 13320), (1665, 12640), (1776, 11850), (1800, 11692), (1850, 11376), (1896, 11100), (1975, 10656), (2220, 9480), (2370, 8880), (2400, 8769), (2528, 8325), (2664, 7900), (2775, 7584), (2844, 7400), (2923, 7200), (2960, 7110), (3160, 6660), (3330, 6320), (3552, 5925), (3555, 5920), (3600, 5846), (3700, 5688), (3792, 5550), (3950, 5328), (4440, 4740)]