20399609600

素因数分解:

$2^8\times 5^2\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{311}}^1$

素因数の和:651

約数の個数: 216

約数和(自身を含む): 52211429088

約数和(自身を除く): 31811819488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 50, 64, 74, 80, 100, 128, 148, 160, 185, 200, 256, 277, 296, 311, 320, 370, 400, 554, 592, 622, 640, 740, 800, 925, 1108, 1184, 1244, 1280, 1385, 1480, 1555, 1600, 1850, 2216, 2368, 2488, 2770, 2960, 3110, 3200, 3700, 4432, 4736, 4976, 5540, 5920, 6220, 6400, 6925, 7400, 7775, 8864, 9472, 9952, 10249, 11080, 11507, 11840, 12440, 13850, 14800, 15550, 17728, 19904, 20498, 22160, 23014, 23680, 24880, 27700, 29600, 31100, 35456, 39808, 40996, 44320, 46028, 47360, 49760, 51245, 55400, 57535, 59200, 62200, 70912, 79616, 81992, 86147, 88640, 92056, 99520, 102490, 110800, 115070, 118400, 124400, 163984, 172294, 177280, 184112, 199040, 204980, 221600, 230140, 236800, 248800, 256225, 287675, 327968, 344588, 354560, 368224, 398080, 409960, 430735, 443200, 460280, 497600, 512450, 575350, 655936, 689176, 736448, 819920, 861470, 886400, 920560, 995200, 1024900, 1150700, 1311872, 1378352, 1472896, 1639840, 1722940, 1772800, 1841120, 1990400, 2049800, 2153675, 2301400, 2623744, 2756704, 2945792, 3187439, 3279680, 3445880, 3682240, 4099600, 4307350, 4602800, 5513408, 6374878, 6559360, 6891760, 7364480, 8199200, 8614700, 9205600, 11026816, 12749756, 13118720, 13783520, 14728960, 15937195, 16398400, 17229400, 18411200, 22053632, 25499512, 27567040, 31874390, 32796800, 34458800, 36822400, 50999024, 55134080, 63748780, 65593600, 68917600, 73644800, 79685975, 101998048, 110268160, 127497560, 137835200, 159371950, 203996096, 254995120, 275670400, 318743900, 407992192, 509990240, 551340800, 637487800, 815984384, 1019980480, 1274975600, 2039960960, 2549951200, 4079921920, 5099902400, 10199804800, 20399609600]

約数ペア:

[(1, 20399609600), (2, 10199804800), (4, 5099902400), (5, 4079921920), (8, 2549951200), (10, 2039960960), (16, 1274975600), (20, 1019980480), (25, 815984384), (32, 637487800), (37, 551340800), (40, 509990240), (50, 407992192), (64, 318743900), (74, 275670400), (80, 254995120), (100, 203996096), (128, 159371950), (148, 137835200), (160, 127497560), (185, 110268160), (200, 101998048), (256, 79685975), (277, 73644800), (296, 68917600), (311, 65593600), (320, 63748780), (370, 55134080), (400, 50999024), (554, 36822400), (592, 34458800), (622, 32796800), (640, 31874390), (740, 27567040), (800, 25499512), (925, 22053632), (1108, 18411200), (1184, 17229400), (1244, 16398400), (1280, 15937195), (1385, 14728960), (1480, 13783520), (1555, 13118720), (1600, 12749756), (1850, 11026816), (2216, 9205600), (2368, 8614700), (2488, 8199200), (2770, 7364480), (2960, 6891760), (3110, 6559360), (3200, 6374878), (3700, 5513408), (4432, 4602800), (4736, 4307350), (4976, 4099600), (5540, 3682240), (5920, 3445880), (6220, 3279680), (6400, 3187439), (6925, 2945792), (7400, 2756704), (7775, 2623744), (8864, 2301400), (9472, 2153675), (9952, 2049800), (10249, 1990400), (11080, 1841120), (11507, 1772800), (11840, 1722940), (12440, 1639840), (13850, 1472896), (14800, 1378352), (15550, 1311872), (17728, 1150700), (19904, 1024900), (20498, 995200), (22160, 920560), (23014, 886400), (23680, 861470), (24880, 819920), (27700, 736448), (29600, 689176), (31100, 655936), (35456, 575350), (39808, 512450), (40996, 497600), (44320, 460280), (46028, 443200), (47360, 430735), (49760, 409960), (51245, 398080), (55400, 368224), (57535, 354560), (59200, 344588), (62200, 327968), (70912, 287675), (79616, 256225), (81992, 248800), (86147, 236800), (88640, 230140), (92056, 221600), (99520, 204980), (102490, 199040), (110800, 184112), (115070, 177280), (118400, 172294), (124400, 163984)]