20181636720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4004293}}^1$

素因数の和:4004319

約数の個数: 120

約数和(自身を含む): 77459063136

約数和(自身を除く): 57277426416

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 4004293, 8008586, 12012879, 16017172, 20021465, 24025758, 28030051, 32034344, 36038637, 40042930, 48051516, 56060102, 60064395, 64068688, 72077274, 80085860, 84090153, 96103032, 112120204, 120128790, 140150255, 144154548, 160171720, 168180306, 180193185, 192206064, 224240408, 240257580, 252270459, 280300510, 288309096, 320343440, 336360612, 360386370, 420450765, 448480816, 480515160, 504540918, 560601020, 576618192, 672721224, 720772740, 840901530, 961030320, 1009081836, 1121202040, 1261352295, 1345442448, 1441545480, 1681803060, 2018163672, 2242404080, 2522704590, 2883090960, 3363606120, 4036327344, 5045409180, 6727212240, 10090818360, 20181636720]

約数ペア:

[(1, 20181636720), (2, 10090818360), (3, 6727212240), (4, 5045409180), (5, 4036327344), (6, 3363606120), (7, 2883090960), (8, 2522704590), (9, 2242404080), (10, 2018163672), (12, 1681803060), (14, 1441545480), (15, 1345442448), (16, 1261352295), (18, 1121202040), (20, 1009081836), (21, 961030320), (24, 840901530), (28, 720772740), (30, 672721224), (35, 576618192), (36, 560601020), (40, 504540918), (42, 480515160), (45, 448480816), (48, 420450765), (56, 360386370), (60, 336360612), (63, 320343440), (70, 288309096), (72, 280300510), (80, 252270459), (84, 240257580), (90, 224240408), (105, 192206064), (112, 180193185), (120, 168180306), (126, 160171720), (140, 144154548), (144, 140150255), (168, 120128790), (180, 112120204), (210, 96103032), (240, 84090153), (252, 80085860), (280, 72077274), (315, 64068688), (336, 60064395), (360, 56060102), (420, 48051516), (504, 40042930), (560, 36038637), (630, 32034344), (720, 28030051), (840, 24025758), (1008, 20021465), (1260, 16017172), (1680, 12012879), (2520, 8008586), (5040, 4004293)]