257651520

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1667}}^1$

素因数の和:1717

約数の個数: 224

約数和(自身を含む): 976140288

約数和(自身を除く): 718488768

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 64, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 138, 140, 160, 161, 168, 184, 192, 210, 224, 230, 240, 276, 280, 320, 322, 336, 345, 368, 420, 448, 460, 480, 483, 552, 560, 644, 672, 690, 736, 805, 840, 920, 960, 966, 1104, 1120, 1288, 1344, 1380, 1472, 1610, 1667, 1680, 1840, 1932, 2208, 2240, 2415, 2576, 2760, 3220, 3334, 3360, 3680, 3864, 4416, 4830, 5001, 5152, 5520, 6440, 6668, 6720, 7360, 7728, 8335, 9660, 10002, 10304, 11040, 11669, 12880, 13336, 15456, 16670, 19320, 20004, 22080, 23338, 25005, 25760, 26672, 30912, 33340, 35007, 38341, 38640, 40008, 46676, 50010, 51520, 53344, 58345, 66680, 70014, 76682, 77280, 80016, 93352, 100020, 106688, 115023, 116690, 133360, 140028, 153364, 154560, 160032, 175035, 186704, 191705, 200040, 230046, 233380, 266720, 268387, 280056, 306728, 320064, 350070, 373408, 383410, 400080, 460092, 466760, 533440, 536774, 560112, 575115, 613456, 700140, 746816, 766820, 800160, 805161, 920184, 933520, 1073548, 1120224, 1150230, 1226912, 1341935, 1400280, 1533640, 1600320, 1610322, 1840368, 1867040, 2147096, 2240448, 2300460, 2453824, 2683870, 2800560, 3067280, 3220644, 3680736, 3734080, 4025805, 4294192, 4600920, 5367740, 5601120, 6134560, 6441288, 7361472, 8051610, 8588384, 9201840, 10735480, 11202240, 12269120, 12882576, 16103220, 17176768, 18403680, 21470960, 25765152, 32206440, 36807360, 42941920, 51530304, 64412880, 85883840, 128825760, 257651520]

約数ペア:

[(1, 257651520), (2, 128825760), (3, 85883840), (4, 64412880), (5, 51530304), (6, 42941920), (7, 36807360), (8, 32206440), (10, 25765152), (12, 21470960), (14, 18403680), (15, 17176768), (16, 16103220), (20, 12882576), (21, 12269120), (23, 11202240), (24, 10735480), (28, 9201840), (30, 8588384), (32, 8051610), (35, 7361472), (40, 6441288), (42, 6134560), (46, 5601120), (48, 5367740), (56, 4600920), (60, 4294192), (64, 4025805), (69, 3734080), (70, 3680736), (80, 3220644), (84, 3067280), (92, 2800560), (96, 2683870), (105, 2453824), (112, 2300460), (115, 2240448), (120, 2147096), (138, 1867040), (140, 1840368), (160, 1610322), (161, 1600320), (168, 1533640), (184, 1400280), (192, 1341935), (210, 1226912), (224, 1150230), (230, 1120224), (240, 1073548), (276, 933520), (280, 920184), (320, 805161), (322, 800160), (336, 766820), (345, 746816), (368, 700140), (420, 613456), (448, 575115), (460, 560112), (480, 536774), (483, 533440), (552, 466760), (560, 460092), (644, 400080), (672, 383410), (690, 373408), (736, 350070), (805, 320064), (840, 306728), (920, 280056), (960, 268387), (966, 266720), (1104, 233380), (1120, 230046), (1288, 200040), (1344, 191705), (1380, 186704), (1472, 175035), (1610, 160032), (1667, 154560), (1680, 153364), (1840, 140028), (1932, 133360), (2208, 116690), (2240, 115023), (2415, 106688), (2576, 100020), (2760, 93352), (3220, 80016), (3334, 77280), (3360, 76682), (3680, 70014), (3864, 66680), (4416, 58345), (4830, 53344), (5001, 51520), (5152, 50010), (5520, 46676), (6440, 40008), (6668, 38640), (6720, 38341), (7360, 35007), (7728, 33340), (8335, 30912), (9660, 26672), (10002, 25760), (10304, 25005), (11040, 23338), (11669, 22080), (12880, 20004), (13336, 19320), (15456, 16670)]