2021331520

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{751}}^1$

素因数の和:1428

約数の個数: 112

約数和(自身を含む): 5198473728

約数和(自身を除く): 3177142208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 647, 751, 832, 1040, 1294, 1502, 2080, 2588, 3004, 3235, 3755, 4160, 5176, 6008, 6470, 7510, 8411, 9763, 10352, 12016, 12940, 15020, 16822, 19526, 20704, 24032, 25880, 30040, 33644, 39052, 41408, 42055, 48064, 48815, 51760, 60080, 67288, 78104, 84110, 97630, 103520, 120160, 134576, 156208, 168220, 195260, 207040, 240320, 269152, 312416, 336440, 390520, 485897, 538304, 624832, 672880, 781040, 971794, 1345760, 1562080, 1943588, 2429485, 2691520, 3124160, 3887176, 4858970, 6316661, 7774352, 9717940, 12633322, 15548704, 19435880, 25266644, 31097408, 31583305, 38871760, 50533288, 63166610, 77743520, 101066576, 126333220, 155487040, 202133152, 252666440, 404266304, 505332880, 1010665760, 2021331520]

約数ペア:

[(1, 2021331520), (2, 1010665760), (4, 505332880), (5, 404266304), (8, 252666440), (10, 202133152), (13, 155487040), (16, 126333220), (20, 101066576), (26, 77743520), (32, 63166610), (40, 50533288), (52, 38871760), (64, 31583305), (65, 31097408), (80, 25266644), (104, 19435880), (130, 15548704), (160, 12633322), (208, 9717940), (260, 7774352), (320, 6316661), (416, 4858970), (520, 3887176), (647, 3124160), (751, 2691520), (832, 2429485), (1040, 1943588), (1294, 1562080), (1502, 1345760), (2080, 971794), (2588, 781040), (3004, 672880), (3235, 624832), (3755, 538304), (4160, 485897), (5176, 390520), (6008, 336440), (6470, 312416), (7510, 269152), (8411, 240320), (9763, 207040), (10352, 195260), (12016, 168220), (12940, 156208), (15020, 134576), (16822, 120160), (19526, 103520), (20704, 97630), (24032, 84110), (25880, 78104), (30040, 67288), (33644, 60080), (39052, 51760), (41408, 48815), (42055, 48064)]