218821680

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3947}}^1$

素因数の和:3984

約数の個数: 240

約数和(自身を含む): 916441344

約数和(自身を除く): 697619664

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 165, 168, 176, 180, 198, 210, 220, 231, 240, 252, 264, 280, 308, 315, 330, 336, 360, 385, 396, 420, 440, 462, 495, 504, 528, 560, 616, 630, 660, 693, 720, 770, 792, 840, 880, 924, 990, 1008, 1155, 1232, 1260, 1320, 1386, 1540, 1584, 1680, 1848, 1980, 2310, 2520, 2640, 2772, 3080, 3465, 3696, 3947, 3960, 4620, 5040, 5544, 6160, 6930, 7894, 7920, 9240, 11088, 11841, 13860, 15788, 18480, 19735, 23682, 27629, 27720, 31576, 35523, 39470, 43417, 47364, 55258, 55440, 59205, 63152, 71046, 78940, 82887, 86834, 94728, 110516, 118410, 130251, 138145, 142092, 157880, 165774, 173668, 177615, 189456, 217085, 221032, 236820, 248661, 260502, 276290, 284184, 303919, 315760, 331548, 347336, 355230, 390753, 414435, 434170, 442064, 473640, 497322, 521004, 552580, 568368, 607838, 651255, 663096, 694672, 710460, 781506, 828870, 868340, 911757, 947280, 994644, 1042008, 1105160, 1215676, 1243305, 1302510, 1326192, 1420920, 1519595, 1563012, 1657740, 1736680, 1823514, 1953765, 1989288, 2084016, 2210320, 2431352, 2486610, 2605020, 2735271, 2841840, 3039190, 3126024, 3315480, 3473360, 3647028, 3907530, 3978576, 4558785, 4862704, 4973220, 5210040, 5470542, 6078380, 6252048, 6630960, 7294056, 7815060, 9117570, 9946440, 10420080, 10941084, 12156760, 13676355, 14588112, 15630120, 18235140, 19892880, 21882168, 24313520, 27352710, 31260240, 36470280, 43764336, 54705420, 72940560, 109410840, 218821680]

約数ペア:

[(1, 218821680), (2, 109410840), (3, 72940560), (4, 54705420), (5, 43764336), (6, 36470280), (7, 31260240), (8, 27352710), (9, 24313520), (10, 21882168), (11, 19892880), (12, 18235140), (14, 15630120), (15, 14588112), (16, 13676355), (18, 12156760), (20, 10941084), (21, 10420080), (22, 9946440), (24, 9117570), (28, 7815060), (30, 7294056), (33, 6630960), (35, 6252048), (36, 6078380), (40, 5470542), (42, 5210040), (44, 4973220), (45, 4862704), (48, 4558785), (55, 3978576), (56, 3907530), (60, 3647028), (63, 3473360), (66, 3315480), (70, 3126024), (72, 3039190), (77, 2841840), (80, 2735271), (84, 2605020), (88, 2486610), (90, 2431352), (99, 2210320), (105, 2084016), (110, 1989288), (112, 1953765), (120, 1823514), (126, 1736680), (132, 1657740), (140, 1563012), (144, 1519595), (154, 1420920), (165, 1326192), (168, 1302510), (176, 1243305), (180, 1215676), (198, 1105160), (210, 1042008), (220, 994644), (231, 947280), (240, 911757), (252, 868340), (264, 828870), (280, 781506), (308, 710460), (315, 694672), (330, 663096), (336, 651255), (360, 607838), (385, 568368), (396, 552580), (420, 521004), (440, 497322), (462, 473640), (495, 442064), (504, 434170), (528, 414435), (560, 390753), (616, 355230), (630, 347336), (660, 331548), (693, 315760), (720, 303919), (770, 284184), (792, 276290), (840, 260502), (880, 248661), (924, 236820), (990, 221032), (1008, 217085), (1155, 189456), (1232, 177615), (1260, 173668), (1320, 165774), (1386, 157880), (1540, 142092), (1584, 138145), (1680, 130251), (1848, 118410), (1980, 110516), (2310, 94728), (2520, 86834), (2640, 82887), (2772, 78940), (3080, 71046), (3465, 63152), (3696, 59205), (3947, 55440), (3960, 55258), (4620, 47364), (5040, 43417), (5544, 39470), (6160, 35523), (6930, 31576), (7894, 27720), (7920, 27629), (9240, 23682), (11088, 19735), (11841, 18480), (13860, 15788)]