221991840

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{2447}}^1$

素因数の和:2481

約数の個数: 240

約数和(自身を含む): 895732992

約数和(自身を除く): 673741152

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 324, 336, 360, 378, 405, 420, 432, 480, 504, 540, 560, 567, 630, 648, 672, 720, 756, 810, 840, 864, 945, 1008, 1080, 1120, 1134, 1260, 1296, 1440, 1512, 1620, 1680, 1890, 2016, 2160, 2268, 2447, 2520, 2592, 2835, 3024, 3240, 3360, 3780, 4320, 4536, 4894, 5040, 5670, 6048, 6480, 7341, 7560, 9072, 9788, 10080, 11340, 12235, 12960, 14682, 15120, 17129, 18144, 19576, 22023, 22680, 24470, 29364, 30240, 34258, 36705, 39152, 44046, 45360, 48940, 51387, 58728, 66069, 68516, 73410, 78304, 85645, 88092, 90720, 97880, 102774, 110115, 117456, 132138, 137032, 146820, 154161, 171290, 176184, 195760, 198207, 205548, 220230, 234912, 256935, 264276, 274064, 293640, 308322, 330345, 342580, 352368, 391520, 396414, 411096, 440460, 462483, 513870, 528552, 548128, 587280, 616644, 660690, 685160, 704736, 770805, 792828, 822192, 880920, 924966, 991035, 1027740, 1057104, 1174560, 1233288, 1321380, 1370320, 1387449, 1541610, 1585656, 1644384, 1761840, 1849932, 1982070, 2055480, 2114208, 2312415, 2466576, 2642760, 2740640, 2774898, 3083220, 3171312, 3523680, 3699864, 3964140, 4110960, 4624830, 4933152, 5285520, 5549796, 6166440, 6342624, 6937245, 7399728, 7928280, 8221920, 9249660, 10571040, 11099592, 12332880, 13874490, 14799456, 15856560, 18499320, 22199184, 24665760, 27748980, 31713120, 36998640, 44398368, 55497960, 73997280, 110995920, 221991840]

約数ペア:

[(1, 221991840), (2, 110995920), (3, 73997280), (4, 55497960), (5, 44398368), (6, 36998640), (7, 31713120), (8, 27748980), (9, 24665760), (10, 22199184), (12, 18499320), (14, 15856560), (15, 14799456), (16, 13874490), (18, 12332880), (20, 11099592), (21, 10571040), (24, 9249660), (27, 8221920), (28, 7928280), (30, 7399728), (32, 6937245), (35, 6342624), (36, 6166440), (40, 5549796), (42, 5285520), (45, 4933152), (48, 4624830), (54, 4110960), (56, 3964140), (60, 3699864), (63, 3523680), (70, 3171312), (72, 3083220), (80, 2774898), (81, 2740640), (84, 2642760), (90, 2466576), (96, 2312415), (105, 2114208), (108, 2055480), (112, 1982070), (120, 1849932), (126, 1761840), (135, 1644384), (140, 1585656), (144, 1541610), (160, 1387449), (162, 1370320), (168, 1321380), (180, 1233288), (189, 1174560), (210, 1057104), (216, 1027740), (224, 991035), (240, 924966), (252, 880920), (270, 822192), (280, 792828), (288, 770805), (315, 704736), (324, 685160), (336, 660690), (360, 616644), (378, 587280), (405, 548128), (420, 528552), (432, 513870), (480, 462483), (504, 440460), (540, 411096), (560, 396414), (567, 391520), (630, 352368), (648, 342580), (672, 330345), (720, 308322), (756, 293640), (810, 274064), (840, 264276), (864, 256935), (945, 234912), (1008, 220230), (1080, 205548), (1120, 198207), (1134, 195760), (1260, 176184), (1296, 171290), (1440, 154161), (1512, 146820), (1620, 137032), (1680, 132138), (1890, 117456), (2016, 110115), (2160, 102774), (2268, 97880), (2447, 90720), (2520, 88092), (2592, 85645), (2835, 78304), (3024, 73410), (3240, 68516), (3360, 66069), (3780, 58728), (4320, 51387), (4536, 48940), (4894, 45360), (5040, 44046), (5670, 39152), (6048, 36705), (6480, 34258), (7341, 30240), (7560, 29364), (9072, 24470), (9788, 22680), (10080, 22023), (11340, 19576), (12235, 18144), (12960, 17129), (14682, 15120)]