20512876800

素因数分解:

$2^8\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{82183}}^1$

素因数の和:82225

約数の個数: 216

約数和(自身を含む): 72905097664

約数和(自身を除く): 52392220864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 64, 65, 75, 78, 80, 96, 100, 104, 120, 128, 130, 150, 156, 160, 192, 195, 200, 208, 240, 256, 260, 300, 312, 320, 325, 384, 390, 400, 416, 480, 520, 600, 624, 640, 650, 768, 780, 800, 832, 960, 975, 1040, 1200, 1248, 1280, 1300, 1560, 1600, 1664, 1920, 1950, 2080, 2400, 2496, 2600, 3120, 3200, 3328, 3840, 3900, 4160, 4800, 4992, 5200, 6240, 6400, 7800, 8320, 9600, 9984, 10400, 12480, 15600, 16640, 19200, 20800, 24960, 31200, 41600, 49920, 62400, 82183, 83200, 124800, 164366, 246549, 249600, 328732, 410915, 493098, 657464, 821830, 986196, 1068379, 1232745, 1314928, 1643660, 1972392, 2054575, 2136758, 2465490, 2629856, 3205137, 3287320, 3944784, 4109150, 4273516, 4930980, 5259712, 5341895, 6163725, 6410274, 6574640, 7889568, 8218300, 8547032, 9861960, 10519424, 10683790, 12327450, 12820548, 13149280, 15779136, 16025685, 16436600, 17094064, 19723920, 21038848, 21367580, 24654900, 25641096, 26298560, 26709475, 31558272, 32051370, 32873200, 34188128, 39447840, 42735160, 49309800, 51282192, 52597120, 53418950, 63116544, 64102740, 65746400, 68376256, 78895680, 80128425, 85470320, 98619600, 102564384, 105194240, 106837900, 128205480, 131492800, 136752512, 157791360, 160256850, 170940640, 197239200, 205128768, 213675800, 256410960, 262985600, 273505024, 315582720, 320513700, 341881280, 394478400, 410257536, 427351600, 512821920, 525971200, 641027400, 683762560, 788956800, 820515072, 854703200, 1025643840, 1282054800, 1367525120, 1577913600, 1709406400, 2051287680, 2564109600, 3418812800, 4102575360, 5128219200, 6837625600, 10256438400, 20512876800]

約数ペア:

[(1, 20512876800), (2, 10256438400), (3, 6837625600), (4, 5128219200), (5, 4102575360), (6, 3418812800), (8, 2564109600), (10, 2051287680), (12, 1709406400), (13, 1577913600), (15, 1367525120), (16, 1282054800), (20, 1025643840), (24, 854703200), (25, 820515072), (26, 788956800), (30, 683762560), (32, 641027400), (39, 525971200), (40, 512821920), (48, 427351600), (50, 410257536), (52, 394478400), (60, 341881280), (64, 320513700), (65, 315582720), (75, 273505024), (78, 262985600), (80, 256410960), (96, 213675800), (100, 205128768), (104, 197239200), (120, 170940640), (128, 160256850), (130, 157791360), (150, 136752512), (156, 131492800), (160, 128205480), (192, 106837900), (195, 105194240), (200, 102564384), (208, 98619600), (240, 85470320), (256, 80128425), (260, 78895680), (300, 68376256), (312, 65746400), (320, 64102740), (325, 63116544), (384, 53418950), (390, 52597120), (400, 51282192), (416, 49309800), (480, 42735160), (520, 39447840), (600, 34188128), (624, 32873200), (640, 32051370), (650, 31558272), (768, 26709475), (780, 26298560), (800, 25641096), (832, 24654900), (960, 21367580), (975, 21038848), (1040, 19723920), (1200, 17094064), (1248, 16436600), (1280, 16025685), (1300, 15779136), (1560, 13149280), (1600, 12820548), (1664, 12327450), (1920, 10683790), (1950, 10519424), (2080, 9861960), (2400, 8547032), (2496, 8218300), (2600, 7889568), (3120, 6574640), (3200, 6410274), (3328, 6163725), (3840, 5341895), (3900, 5259712), (4160, 4930980), (4800, 4273516), (4992, 4109150), (5200, 3944784), (6240, 3287320), (6400, 3205137), (7800, 2629856), (8320, 2465490), (9600, 2136758), (9984, 2054575), (10400, 1972392), (12480, 1643660), (15600, 1314928), (16640, 1232745), (19200, 1068379), (20800, 986196), (24960, 821830), (31200, 657464), (41600, 493098), (49920, 410915), (62400, 328732), (82183, 249600), (83200, 246549), (124800, 164366)]