131227880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 192

約数和(自身を含む): 372314880

約数和(自身を除く): 241087000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 41, 46, 49, 56, 70, 71, 82, 92, 98, 115, 140, 142, 161, 164, 184, 196, 205, 230, 245, 280, 284, 287, 322, 328, 355, 392, 410, 460, 490, 497, 568, 574, 644, 710, 805, 820, 920, 943, 980, 994, 1127, 1148, 1288, 1420, 1435, 1610, 1633, 1640, 1886, 1960, 1988, 2009, 2254, 2296, 2485, 2840, 2870, 2911, 3220, 3266, 3479, 3772, 3976, 4018, 4508, 4715, 4970, 5635, 5740, 5822, 6440, 6532, 6601, 6958, 7544, 8036, 8165, 9016, 9430, 9940, 10045, 11270, 11431, 11480, 11644, 13064, 13202, 13916, 14555, 16072, 16330, 17395, 18860, 19880, 20090, 20377, 22540, 22862, 23288, 26404, 27832, 29110, 32660, 33005, 34790, 37720, 40180, 40754, 45080, 45724, 46207, 52808, 57155, 58220, 65320, 66010, 66953, 69580, 80017, 80360, 81508, 91448, 92414, 101885, 114310, 116440, 132020, 133906, 139160, 142639, 160034, 163016, 184828, 203770, 228620, 231035, 264040, 267812, 285278, 320068, 334765, 369656, 400085, 407540, 457240, 462070, 468671, 535624, 570556, 640136, 669530, 713195, 800170, 815080, 924140, 937342, 1141112, 1339060, 1426390, 1600340, 1848280, 1874684, 2343355, 2678120, 2852780, 3200680, 3280697, 3749368, 4686710, 5705560, 6561394, 9373420, 13122788, 16403485, 18746840, 26245576, 32806970, 65613940, 131227880]

約数ペア:

[(1, 131227880), (2, 65613940), (4, 32806970), (5, 26245576), (7, 18746840), (8, 16403485), (10, 13122788), (14, 9373420), (20, 6561394), (23, 5705560), (28, 4686710), (35, 3749368), (40, 3280697), (41, 3200680), (46, 2852780), (49, 2678120), (56, 2343355), (70, 1874684), (71, 1848280), (82, 1600340), (92, 1426390), (98, 1339060), (115, 1141112), (140, 937342), (142, 924140), (161, 815080), (164, 800170), (184, 713195), (196, 669530), (205, 640136), (230, 570556), (245, 535624), (280, 468671), (284, 462070), (287, 457240), (322, 407540), (328, 400085), (355, 369656), (392, 334765), (410, 320068), (460, 285278), (490, 267812), (497, 264040), (568, 231035), (574, 228620), (644, 203770), (710, 184828), (805, 163016), (820, 160034), (920, 142639), (943, 139160), (980, 133906), (994, 132020), (1127, 116440), (1148, 114310), (1288, 101885), (1420, 92414), (1435, 91448), (1610, 81508), (1633, 80360), (1640, 80017), (1886, 69580), (1960, 66953), (1988, 66010), (2009, 65320), (2254, 58220), (2296, 57155), (2485, 52808), (2840, 46207), (2870, 45724), (2911, 45080), (3220, 40754), (3266, 40180), (3479, 37720), (3772, 34790), (3976, 33005), (4018, 32660), (4508, 29110), (4715, 27832), (4970, 26404), (5635, 23288), (5740, 22862), (5822, 22540), (6440, 20377), (6532, 20090), (6601, 19880), (6958, 18860), (7544, 17395), (8036, 16330), (8165, 16072), (9016, 14555), (9430, 13916), (9940, 13202), (10045, 13064), (11270, 11644), (11431, 11480)]