2540160

素因数分解:

$2^7\times 3^4\times 5^1\times 7^2$

素因数の和:45

約数の個数: 240

約数和(自身を含む): 10552410

約数和(自身を除く): 8012250

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 64, 70, 72, 80, 81, 84, 90, 96, 98, 105, 108, 112, 120, 126, 128, 135, 140, 144, 147, 160, 162, 168, 180, 189, 192, 196, 210, 216, 224, 240, 245, 252, 270, 280, 288, 294, 315, 320, 324, 336, 360, 378, 384, 392, 405, 420, 432, 441, 448, 480, 490, 504, 540, 560, 567, 576, 588, 630, 640, 648, 672, 720, 735, 756, 784, 810, 840, 864, 882, 896, 945, 960, 980, 1008, 1080, 1120, 1134, 1152, 1176, 1260, 1296, 1323, 1344, 1440, 1470, 1512, 1568, 1620, 1680, 1728, 1764, 1890, 1920, 1960, 2016, 2160, 2205, 2240, 2268, 2352, 2520, 2592, 2646, 2688, 2835, 2880, 2940, 3024, 3136, 3240, 3360, 3456, 3528, 3780, 3920, 3969, 4032, 4320, 4410, 4480, 4536, 4704, 5040, 5184, 5292, 5670, 5760, 5880, 6048, 6272, 6480, 6615, 6720, 7056, 7560, 7840, 7938, 8064, 8640, 8820, 9072, 9408, 10080, 10368, 10584, 11340, 11760, 12096, 12960, 13230, 13440, 14112, 15120, 15680, 15876, 17280, 17640, 18144, 18816, 19845, 20160, 21168, 22680, 23520, 24192, 25920, 26460, 28224, 30240, 31360, 31752, 35280, 36288, 39690, 40320, 42336, 45360, 47040, 51840, 52920, 56448, 60480, 63504, 70560, 72576, 79380, 84672, 90720, 94080, 105840, 120960, 127008, 141120, 158760, 169344, 181440, 211680, 254016, 282240, 317520, 362880, 423360, 508032, 635040, 846720, 1270080, 2540160]

約数ペア:

[(1, 2540160), (2, 1270080), (3, 846720), (4, 635040), (5, 508032), (6, 423360), (7, 362880), (8, 317520), (9, 282240), (10, 254016), (12, 211680), (14, 181440), (15, 169344), (16, 158760), (18, 141120), (20, 127008), (21, 120960), (24, 105840), (27, 94080), (28, 90720), (30, 84672), (32, 79380), (35, 72576), (36, 70560), (40, 63504), (42, 60480), (45, 56448), (48, 52920), (49, 51840), (54, 47040), (56, 45360), (60, 42336), (63, 40320), (64, 39690), (70, 36288), (72, 35280), (80, 31752), (81, 31360), (84, 30240), (90, 28224), (96, 26460), (98, 25920), (105, 24192), (108, 23520), (112, 22680), (120, 21168), (126, 20160), (128, 19845), (135, 18816), (140, 18144), (144, 17640), (147, 17280), (160, 15876), (162, 15680), (168, 15120), (180, 14112), (189, 13440), (192, 13230), (196, 12960), (210, 12096), (216, 11760), (224, 11340), (240, 10584), (245, 10368), (252, 10080), (270, 9408), (280, 9072), (288, 8820), (294, 8640), (315, 8064), (320, 7938), (324, 7840), (336, 7560), (360, 7056), (378, 6720), (384, 6615), (392, 6480), (405, 6272), (420, 6048), (432, 5880), (441, 5760), (448, 5670), (480, 5292), (490, 5184), (504, 5040), (540, 4704), (560, 4536), (567, 4480), (576, 4410), (588, 4320), (630, 4032), (640, 3969), (648, 3920), (672, 3780), (720, 3528), (735, 3456), (756, 3360), (784, 3240), (810, 3136), (840, 3024), (864, 2940), (882, 2880), (896, 2835), (945, 2688), (960, 2646), (980, 2592), (1008, 2520), (1080, 2352), (1120, 2268), (1134, 2240), (1152, 2205), (1176, 2160), (1260, 2016), (1296, 1960), (1323, 1920), (1344, 1890), (1440, 1764), (1470, 1728), (1512, 1680), (1568, 1620)]