20801026560

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{2708467}}^1$

素因数の和:2708493

約数の個数: 80

約数和(自身を含む): 66498306336

約数和(自身を除く): 45697279776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 3840, 7680, 2708467, 5416934, 8125401, 10833868, 13542335, 16250802, 21667736, 27084670, 32501604, 40627005, 43335472, 54169340, 65003208, 81254010, 86670944, 108338680, 130006416, 162508020, 173341888, 216677360, 260012832, 325016040, 346683776, 433354720, 520025664, 650032080, 693367552, 866709440, 1040051328, 1300064160, 1386735104, 1733418880, 2080102656, 2600128320, 3466837760, 4160205312, 5200256640, 6933675520, 10400513280, 20801026560]

約数ペア:

[(1, 20801026560), (2, 10400513280), (3, 6933675520), (4, 5200256640), (5, 4160205312), (6, 3466837760), (8, 2600128320), (10, 2080102656), (12, 1733418880), (15, 1386735104), (16, 1300064160), (20, 1040051328), (24, 866709440), (30, 693367552), (32, 650032080), (40, 520025664), (48, 433354720), (60, 346683776), (64, 325016040), (80, 260012832), (96, 216677360), (120, 173341888), (128, 162508020), (160, 130006416), (192, 108338680), (240, 86670944), (256, 81254010), (320, 65003208), (384, 54169340), (480, 43335472), (512, 40627005), (640, 32501604), (768, 27084670), (960, 21667736), (1280, 16250802), (1536, 13542335), (1920, 10833868), (2560, 8125401), (3840, 5416934), (7680, 2708467)]