281344280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{79}}^2$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 778241520

約数和(自身を除く): 496897240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 79, 92, 98, 115, 140, 158, 161, 184, 196, 230, 245, 280, 316, 322, 392, 395, 460, 490, 553, 632, 644, 790, 805, 920, 980, 1106, 1127, 1288, 1580, 1610, 1817, 1960, 2212, 2254, 2765, 3160, 3220, 3634, 3871, 4424, 4508, 5530, 5635, 6241, 6440, 7268, 7742, 9016, 9085, 11060, 11270, 12482, 12719, 14536, 15484, 18170, 19355, 22120, 22540, 24964, 25438, 30968, 31205, 36340, 38710, 43687, 45080, 49928, 50876, 62410, 63595, 72680, 77420, 87374, 89033, 101752, 124820, 127190, 143543, 154840, 174748, 178066, 218435, 249640, 254380, 287086, 305809, 349496, 356132, 436870, 445165, 508760, 574172, 611618, 712264, 717715, 873740, 890330, 1004801, 1148344, 1223236, 1435430, 1529045, 1747480, 1780660, 2009602, 2446472, 2870860, 3058090, 3561320, 4019204, 5024005, 5741720, 6116180, 7033607, 8038408, 10048010, 12232360, 14067214, 20096020, 28134428, 35168035, 40192040, 56268856, 70336070, 140672140, 281344280]

約数ペア:

[(1, 281344280), (2, 140672140), (4, 70336070), (5, 56268856), (7, 40192040), (8, 35168035), (10, 28134428), (14, 20096020), (20, 14067214), (23, 12232360), (28, 10048010), (35, 8038408), (40, 7033607), (46, 6116180), (49, 5741720), (56, 5024005), (70, 4019204), (79, 3561320), (92, 3058090), (98, 2870860), (115, 2446472), (140, 2009602), (158, 1780660), (161, 1747480), (184, 1529045), (196, 1435430), (230, 1223236), (245, 1148344), (280, 1004801), (316, 890330), (322, 873740), (392, 717715), (395, 712264), (460, 611618), (490, 574172), (553, 508760), (632, 445165), (644, 436870), (790, 356132), (805, 349496), (920, 305809), (980, 287086), (1106, 254380), (1127, 249640), (1288, 218435), (1580, 178066), (1610, 174748), (1817, 154840), (1960, 143543), (2212, 127190), (2254, 124820), (2765, 101752), (3160, 89033), (3220, 87374), (3634, 77420), (3871, 72680), (4424, 63595), (4508, 62410), (5530, 50876), (5635, 49928), (6241, 45080), (6440, 43687), (7268, 38710), (7742, 36340), (9016, 31205), (9085, 30968), (11060, 25438), (11270, 24964), (12482, 22540), (12719, 22120), (14536, 19355), (15484, 18170)]