397376280

素因数分解:

$2^3\times 3^4\times 5^1\times 7^2\times {\mathrm{2503}}^1$

素因数の和:2540

約数の個数: 240

約数和(自身を含む): 1554307920

約数和(自身を除く): 1156931640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 81, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 162, 168, 180, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 324, 360, 378, 392, 405, 420, 441, 490, 504, 540, 567, 588, 630, 648, 735, 756, 810, 840, 882, 945, 980, 1080, 1134, 1176, 1260, 1323, 1470, 1512, 1620, 1764, 1890, 1960, 2205, 2268, 2503, 2520, 2646, 2835, 2940, 3240, 3528, 3780, 3969, 4410, 4536, 5006, 5292, 5670, 5880, 6615, 7509, 7560, 7938, 8820, 10012, 10584, 11340, 12515, 13230, 15018, 15876, 17521, 17640, 19845, 20024, 22527, 22680, 25030, 26460, 30036, 31752, 35042, 37545, 39690, 45054, 50060, 52563, 52920, 60072, 67581, 70084, 75090, 79380, 87605, 90108, 100120, 105126, 112635, 122647, 135162, 140168, 150180, 157689, 158760, 175210, 180216, 202743, 210252, 225270, 245294, 262815, 270324, 300360, 315378, 337905, 350420, 367941, 405486, 420504, 450540, 473067, 490588, 525630, 540648, 613235, 630756, 675810, 700840, 735882, 788445, 810972, 901080, 946134, 981176, 1013715, 1051260, 1103823, 1226470, 1261512, 1351620, 1419201, 1471764, 1576890, 1621944, 1839705, 1892268, 2027430, 2102520, 2207646, 2365335, 2452940, 2703240, 2838402, 2943528, 3153780, 3311469, 3679410, 3784536, 4054860, 4415292, 4730670, 4905880, 5519115, 5676804, 6307560, 6622938, 7096005, 7358820, 8109720, 8830584, 9461340, 9934407, 11038230, 11353608, 13245876, 14192010, 14717640, 16557345, 18922680, 19868814, 22076460, 26491752, 28384020, 33114690, 39737628, 44152920, 49672035, 56768040, 66229380, 79475256, 99344070, 132458760, 198688140, 397376280]

約数ペア:

[(1, 397376280), (2, 198688140), (3, 132458760), (4, 99344070), (5, 79475256), (6, 66229380), (7, 56768040), (8, 49672035), (9, 44152920), (10, 39737628), (12, 33114690), (14, 28384020), (15, 26491752), (18, 22076460), (20, 19868814), (21, 18922680), (24, 16557345), (27, 14717640), (28, 14192010), (30, 13245876), (35, 11353608), (36, 11038230), (40, 9934407), (42, 9461340), (45, 8830584), (49, 8109720), (54, 7358820), (56, 7096005), (60, 6622938), (63, 6307560), (70, 5676804), (72, 5519115), (81, 4905880), (84, 4730670), (90, 4415292), (98, 4054860), (105, 3784536), (108, 3679410), (120, 3311469), (126, 3153780), (135, 2943528), (140, 2838402), (147, 2703240), (162, 2452940), (168, 2365335), (180, 2207646), (189, 2102520), (196, 2027430), (210, 1892268), (216, 1839705), (245, 1621944), (252, 1576890), (270, 1471764), (280, 1419201), (294, 1351620), (315, 1261512), (324, 1226470), (360, 1103823), (378, 1051260), (392, 1013715), (405, 981176), (420, 946134), (441, 901080), (490, 810972), (504, 788445), (540, 735882), (567, 700840), (588, 675810), (630, 630756), (648, 613235), (735, 540648), (756, 525630), (810, 490588), (840, 473067), (882, 450540), (945, 420504), (980, 405486), (1080, 367941), (1134, 350420), (1176, 337905), (1260, 315378), (1323, 300360), (1470, 270324), (1512, 262815), (1620, 245294), (1764, 225270), (1890, 210252), (1960, 202743), (2205, 180216), (2268, 175210), (2503, 158760), (2520, 157689), (2646, 150180), (2835, 140168), (2940, 135162), (3240, 122647), (3528, 112635), (3780, 105126), (3969, 100120), (4410, 90108), (4536, 87605), (5006, 79380), (5292, 75090), (5670, 70084), (5880, 67581), (6615, 60072), (7509, 52920), (7560, 52563), (7938, 50060), (8820, 45054), (10012, 39690), (10584, 37545), (11340, 35042), (12515, 31752), (13230, 30036), (15018, 26460), (15876, 25030), (17521, 22680), (17640, 22527), (19845, 20024)]