28678320

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 320

約数和(自身を含む): 115706880

約数和(自身を除く): 87028560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 17, 18, 20, 22, 24, 27, 30, 33, 34, 36, 40, 44, 45, 48, 51, 54, 55, 60, 66, 68, 71, 72, 80, 85, 88, 90, 99, 102, 108, 110, 120, 132, 135, 136, 142, 144, 153, 165, 170, 176, 180, 187, 198, 204, 213, 216, 220, 240, 255, 264, 270, 272, 284, 297, 306, 330, 340, 355, 360, 374, 396, 408, 426, 432, 440, 459, 495, 510, 528, 540, 561, 568, 594, 612, 639, 660, 680, 710, 720, 748, 765, 781, 792, 816, 852, 880, 918, 935, 990, 1020, 1065, 1080, 1122, 1136, 1188, 1207, 1224, 1278, 1320, 1360, 1420, 1485, 1496, 1530, 1562, 1584, 1683, 1704, 1836, 1870, 1917, 1980, 2040, 2130, 2160, 2244, 2295, 2343, 2376, 2414, 2448, 2556, 2640, 2805, 2840, 2970, 2992, 3060, 3124, 3195, 3366, 3408, 3621, 3672, 3740, 3834, 3905, 3960, 4080, 4260, 4488, 4590, 4686, 4752, 4828, 5049, 5112, 5610, 5680, 5940, 6035, 6120, 6248, 6390, 6732, 7029, 7242, 7344, 7480, 7668, 7810, 7920, 8415, 8520, 8976, 9180, 9372, 9585, 9656, 10098, 10224, 10863, 11220, 11715, 11880, 12070, 12240, 12496, 12780, 13277, 13464, 14058, 14484, 14960, 15336, 15620, 16830, 17040, 18105, 18360, 18744, 19170, 19312, 20196, 21087, 21726, 22440, 23430, 23760, 24140, 25245, 25560, 26554, 26928, 28116, 28968, 30672, 31240, 32589, 33660, 35145, 36210, 36720, 37488, 38340, 39831, 40392, 42174, 43452, 44880, 46860, 48280, 50490, 51120, 53108, 54315, 56232, 57936, 62480, 65178, 66385, 67320, 70290, 72420, 76680, 79662, 80784, 84348, 86904, 93720, 96560, 100980, 105435, 106216, 108630, 112464, 119493, 130356, 132770, 134640, 140580, 144840, 153360, 159324, 162945, 168696, 173808, 187440, 199155, 201960, 210870, 212432, 217260, 238986, 260712, 265540, 281160, 289680, 318648, 325890, 337392, 358479, 398310, 403920, 421740, 434520, 477972, 521424, 531080, 562320, 597465, 637296, 651780, 716958, 796620, 843480, 869040, 955944, 1062160, 1194930, 1303560, 1433916, 1593240, 1686960, 1792395, 1911888, 2389860, 2607120, 2867832, 3186480, 3584790, 4779720, 5735664, 7169580, 9559440, 14339160, 28678320]

約数ペア:

[(1, 28678320), (2, 14339160), (3, 9559440), (4, 7169580), (5, 5735664), (6, 4779720), (8, 3584790), (9, 3186480), (10, 2867832), (11, 2607120), (12, 2389860), (15, 1911888), (16, 1792395), (17, 1686960), (18, 1593240), (20, 1433916), (22, 1303560), (24, 1194930), (27, 1062160), (30, 955944), (33, 869040), (34, 843480), (36, 796620), (40, 716958), (44, 651780), (45, 637296), (48, 597465), (51, 562320), (54, 531080), (55, 521424), (60, 477972), (66, 434520), (68, 421740), (71, 403920), (72, 398310), (80, 358479), (85, 337392), (88, 325890), (90, 318648), (99, 289680), (102, 281160), (108, 265540), (110, 260712), (120, 238986), (132, 217260), (135, 212432), (136, 210870), (142, 201960), (144, 199155), (153, 187440), (165, 173808), (170, 168696), (176, 162945), (180, 159324), (187, 153360), (198, 144840), (204, 140580), (213, 134640), (216, 132770), (220, 130356), (240, 119493), (255, 112464), (264, 108630), (270, 106216), (272, 105435), (284, 100980), (297, 96560), (306, 93720), (330, 86904), (340, 84348), (355, 80784), (360, 79662), (374, 76680), (396, 72420), (408, 70290), (426, 67320), (432, 66385), (440, 65178), (459, 62480), (495, 57936), (510, 56232), (528, 54315), (540, 53108), (561, 51120), (568, 50490), (594, 48280), (612, 46860), (639, 44880), (660, 43452), (680, 42174), (710, 40392), (720, 39831), (748, 38340), (765, 37488), (781, 36720), (792, 36210), (816, 35145), (852, 33660), (880, 32589), (918, 31240), (935, 30672), (990, 28968), (1020, 28116), (1065, 26928), (1080, 26554), (1122, 25560), (1136, 25245), (1188, 24140), (1207, 23760), (1224, 23430), (1278, 22440), (1320, 21726), (1360, 21087), (1420, 20196), (1485, 19312), (1496, 19170), (1530, 18744), (1562, 18360), (1584, 18105), (1683, 17040), (1704, 16830), (1836, 15620), (1870, 15336), (1917, 14960), (1980, 14484), (2040, 14058), (2130, 13464), (2160, 13277), (2244, 12780), (2295, 12496), (2343, 12240), (2376, 12070), (2414, 11880), (2448, 11715), (2556, 11220), (2640, 10863), (2805, 10224), (2840, 10098), (2970, 9656), (2992, 9585), (3060, 9372), (3124, 9180), (3195, 8976), (3366, 8520), (3408, 8415), (3621, 7920), (3672, 7810), (3740, 7668), (3834, 7480), (3905, 7344), (3960, 7242), (4080, 7029), (4260, 6732), (4488, 6390), (4590, 6248), (4686, 6120), (4752, 6035), (4828, 5940), (5049, 5680), (5112, 5610)]