20645280

素因数分解:

$2^5\times 3^7\times 5^1\times {\mathrm{59}}^1$

素因数の和:95

約数の個数: 192

約数和(自身を含む): 74390400

約数和(自身を除く): 53745120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 59, 60, 72, 80, 81, 90, 96, 108, 118, 120, 135, 144, 160, 162, 177, 180, 216, 236, 240, 243, 270, 288, 295, 324, 354, 360, 405, 432, 472, 480, 486, 531, 540, 590, 648, 708, 720, 729, 810, 864, 885, 944, 972, 1062, 1080, 1180, 1215, 1296, 1416, 1440, 1458, 1593, 1620, 1770, 1888, 1944, 2124, 2160, 2187, 2360, 2430, 2592, 2655, 2832, 2916, 3186, 3240, 3540, 3645, 3888, 4248, 4320, 4374, 4720, 4779, 4860, 5310, 5664, 5832, 6372, 6480, 7080, 7290, 7776, 7965, 8496, 8748, 9440, 9558, 9720, 10620, 10935, 11664, 12744, 12960, 14160, 14337, 14580, 15930, 16992, 17496, 19116, 19440, 21240, 21870, 23328, 23895, 25488, 28320, 28674, 29160, 31860, 34992, 38232, 38880, 42480, 43011, 43740, 47790, 50976, 57348, 58320, 63720, 69984, 71685, 76464, 84960, 86022, 87480, 95580, 114696, 116640, 127440, 129033, 143370, 152928, 172044, 174960, 191160, 215055, 229392, 254880, 258066, 286740, 344088, 349920, 382320, 430110, 458784, 516132, 573480, 645165, 688176, 764640, 860220, 1032264, 1146960, 1290330, 1376352, 1720440, 2064528, 2293920, 2580660, 3440880, 4129056, 5161320, 6881760, 10322640, 20645280]

約数ペア:

[(1, 20645280), (2, 10322640), (3, 6881760), (4, 5161320), (5, 4129056), (6, 3440880), (8, 2580660), (9, 2293920), (10, 2064528), (12, 1720440), (15, 1376352), (16, 1290330), (18, 1146960), (20, 1032264), (24, 860220), (27, 764640), (30, 688176), (32, 645165), (36, 573480), (40, 516132), (45, 458784), (48, 430110), (54, 382320), (59, 349920), (60, 344088), (72, 286740), (80, 258066), (81, 254880), (90, 229392), (96, 215055), (108, 191160), (118, 174960), (120, 172044), (135, 152928), (144, 143370), (160, 129033), (162, 127440), (177, 116640), (180, 114696), (216, 95580), (236, 87480), (240, 86022), (243, 84960), (270, 76464), (288, 71685), (295, 69984), (324, 63720), (354, 58320), (360, 57348), (405, 50976), (432, 47790), (472, 43740), (480, 43011), (486, 42480), (531, 38880), (540, 38232), (590, 34992), (648, 31860), (708, 29160), (720, 28674), (729, 28320), (810, 25488), (864, 23895), (885, 23328), (944, 21870), (972, 21240), (1062, 19440), (1080, 19116), (1180, 17496), (1215, 16992), (1296, 15930), (1416, 14580), (1440, 14337), (1458, 14160), (1593, 12960), (1620, 12744), (1770, 11664), (1888, 10935), (1944, 10620), (2124, 9720), (2160, 9558), (2187, 9440), (2360, 8748), (2430, 8496), (2592, 7965), (2655, 7776), (2832, 7290), (2916, 7080), (3186, 6480), (3240, 6372), (3540, 5832), (3645, 5664), (3888, 5310), (4248, 4860), (4320, 4779), (4374, 4720)]