221775120

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:662

約数の個数: 240

約数和(自身を含む): 863516160

約数和(自身を除く): 641741040

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, 79, 80, 84, 90, 105, 112, 120, 126, 140, 144, 158, 168, 180, 210, 237, 240, 252, 280, 315, 316, 336, 360, 395, 420, 474, 504, 553, 557, 560, 630, 632, 711, 720, 790, 840, 948, 1008, 1106, 1114, 1185, 1260, 1264, 1422, 1580, 1659, 1671, 1680, 1896, 2212, 2228, 2370, 2520, 2765, 2785, 2844, 3160, 3318, 3342, 3555, 3792, 3899, 4424, 4456, 4740, 4977, 5013, 5040, 5530, 5570, 5688, 6320, 6636, 6684, 7110, 7798, 8295, 8355, 8848, 8912, 9480, 9954, 10026, 11060, 11140, 11376, 11697, 13272, 13368, 14220, 15596, 16590, 16710, 18960, 19495, 19908, 20052, 22120, 22280, 23394, 24885, 25065, 26544, 26736, 28440, 31192, 33180, 33420, 35091, 38990, 39816, 40104, 44003, 44240, 44560, 46788, 49770, 50130, 56880, 58485, 62384, 66360, 66840, 70182, 77980, 79632, 80208, 88006, 93576, 99540, 100260, 116970, 132009, 132720, 133680, 140364, 155960, 175455, 176012, 187152, 199080, 200520, 220015, 233940, 264018, 280728, 308021, 311920, 350910, 352024, 396027, 398160, 401040, 440030, 467880, 528036, 561456, 616042, 660045, 701820, 704048, 792054, 880060, 924063, 935760, 1056072, 1232084, 1320090, 1403640, 1540105, 1584108, 1760120, 1848126, 1980135, 2112144, 2464168, 2640180, 2772189, 2807280, 3080210, 3168216, 3520240, 3696252, 3960270, 4620315, 4928336, 5280360, 5544378, 6160420, 6336432, 7392504, 7920540, 9240630, 10560720, 11088756, 12320840, 13860945, 14785008, 15841080, 18481260, 22177512, 24641680, 27721890, 31682160, 36962520, 44355024, 55443780, 73925040, 110887560, 221775120]

約数ペア:

[(1, 221775120), (2, 110887560), (3, 73925040), (4, 55443780), (5, 44355024), (6, 36962520), (7, 31682160), (8, 27721890), (9, 24641680), (10, 22177512), (12, 18481260), (14, 15841080), (15, 14785008), (16, 13860945), (18, 12320840), (20, 11088756), (21, 10560720), (24, 9240630), (28, 7920540), (30, 7392504), (35, 6336432), (36, 6160420), (40, 5544378), (42, 5280360), (45, 4928336), (48, 4620315), (56, 3960270), (60, 3696252), (63, 3520240), (70, 3168216), (72, 3080210), (79, 2807280), (80, 2772189), (84, 2640180), (90, 2464168), (105, 2112144), (112, 1980135), (120, 1848126), (126, 1760120), (140, 1584108), (144, 1540105), (158, 1403640), (168, 1320090), (180, 1232084), (210, 1056072), (237, 935760), (240, 924063), (252, 880060), (280, 792054), (315, 704048), (316, 701820), (336, 660045), (360, 616042), (395, 561456), (420, 528036), (474, 467880), (504, 440030), (553, 401040), (557, 398160), (560, 396027), (630, 352024), (632, 350910), (711, 311920), (720, 308021), (790, 280728), (840, 264018), (948, 233940), (1008, 220015), (1106, 200520), (1114, 199080), (1185, 187152), (1260, 176012), (1264, 175455), (1422, 155960), (1580, 140364), (1659, 133680), (1671, 132720), (1680, 132009), (1896, 116970), (2212, 100260), (2228, 99540), (2370, 93576), (2520, 88006), (2765, 80208), (2785, 79632), (2844, 77980), (3160, 70182), (3318, 66840), (3342, 66360), (3555, 62384), (3792, 58485), (3899, 56880), (4424, 50130), (4456, 49770), (4740, 46788), (4977, 44560), (5013, 44240), (5040, 44003), (5530, 40104), (5570, 39816), (5688, 38990), (6320, 35091), (6636, 33420), (6684, 33180), (7110, 31192), (7798, 28440), (8295, 26736), (8355, 26544), (8848, 25065), (8912, 24885), (9480, 23394), (9954, 22280), (10026, 22120), (11060, 20052), (11140, 19908), (11376, 19495), (11697, 18960), (13272, 16710), (13368, 16590), (14220, 15596)]