251185760

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:258

約数の個数: 192

約数和(自身を含む): 725760000

約数和(自身を除く): 474574240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 160, 161, 184, 196, 199, 224, 230, 245, 280, 322, 343, 368, 392, 398, 460, 490, 560, 644, 686, 736, 784, 796, 805, 920, 980, 995, 1120, 1127, 1288, 1372, 1393, 1568, 1592, 1610, 1715, 1840, 1960, 1990, 2254, 2576, 2744, 2786, 3184, 3220, 3430, 3680, 3920, 3980, 4508, 4577, 5152, 5488, 5572, 5635, 6368, 6440, 6860, 6965, 7840, 7889, 7960, 9016, 9154, 9751, 10976, 11144, 11270, 12880, 13720, 13930, 15778, 15920, 18032, 18308, 19502, 22288, 22540, 22885, 25760, 27440, 27860, 31556, 31840, 32039, 36064, 36616, 39004, 39445, 44576, 45080, 45770, 48755, 54880, 55720, 63112, 64078, 68257, 73232, 78008, 78890, 90160, 91540, 97510, 111440, 126224, 128156, 136514, 146464, 156016, 157780, 160195, 180320, 183080, 195020, 222880, 224273, 252448, 256312, 273028, 312032, 315560, 320390, 341285, 366160, 390040, 448546, 512624, 546056, 631120, 640780, 682570, 732320, 780080, 897092, 1025248, 1092112, 1121365, 1262240, 1281560, 1365140, 1560160, 1569911, 1794184, 2184224, 2242730, 2563120, 2730280, 3139822, 3588368, 4485460, 5126240, 5460560, 6279644, 7176736, 7849555, 8970920, 10921120, 12559288, 15699110, 17941840, 25118576, 31398220, 35883680, 50237152, 62796440, 125592880, 251185760]

約数ペア:

[(1, 251185760), (2, 125592880), (4, 62796440), (5, 50237152), (7, 35883680), (8, 31398220), (10, 25118576), (14, 17941840), (16, 15699110), (20, 12559288), (23, 10921120), (28, 8970920), (32, 7849555), (35, 7176736), (40, 6279644), (46, 5460560), (49, 5126240), (56, 4485460), (70, 3588368), (80, 3139822), (92, 2730280), (98, 2563120), (112, 2242730), (115, 2184224), (140, 1794184), (160, 1569911), (161, 1560160), (184, 1365140), (196, 1281560), (199, 1262240), (224, 1121365), (230, 1092112), (245, 1025248), (280, 897092), (322, 780080), (343, 732320), (368, 682570), (392, 640780), (398, 631120), (460, 546056), (490, 512624), (560, 448546), (644, 390040), (686, 366160), (736, 341285), (784, 320390), (796, 315560), (805, 312032), (920, 273028), (980, 256312), (995, 252448), (1120, 224273), (1127, 222880), (1288, 195020), (1372, 183080), (1393, 180320), (1568, 160195), (1592, 157780), (1610, 156016), (1715, 146464), (1840, 136514), (1960, 128156), (1990, 126224), (2254, 111440), (2576, 97510), (2744, 91540), (2786, 90160), (3184, 78890), (3220, 78008), (3430, 73232), (3680, 68257), (3920, 64078), (3980, 63112), (4508, 55720), (4577, 54880), (5152, 48755), (5488, 45770), (5572, 45080), (5635, 44576), (6368, 39445), (6440, 39004), (6860, 36616), (6965, 36064), (7840, 32039), (7889, 31840), (7960, 31556), (9016, 27860), (9154, 27440), (9751, 25760), (10976, 22885), (11144, 22540), (11270, 22288), (12880, 19502), (13720, 18308), (13930, 18032), (15778, 15920)]