20418720

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:187

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 55060320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 59, 60, 70, 80, 84, 96, 103, 105, 112, 118, 120, 140, 160, 168, 177, 206, 210, 224, 236, 240, 280, 295, 309, 336, 354, 412, 413, 420, 472, 480, 515, 560, 590, 618, 672, 708, 721, 824, 826, 840, 885, 944, 1030, 1120, 1180, 1236, 1239, 1416, 1442, 1545, 1648, 1652, 1680, 1770, 1888, 2060, 2065, 2163, 2360, 2472, 2478, 2832, 2884, 3090, 3296, 3304, 3360, 3540, 3605, 4120, 4130, 4326, 4720, 4944, 4956, 5664, 5768, 6077, 6180, 6195, 6608, 7080, 7210, 8240, 8260, 8652, 9440, 9888, 9912, 10815, 11536, 12154, 12360, 12390, 13216, 14160, 14420, 16480, 16520, 17304, 18231, 19824, 21630, 23072, 24308, 24720, 24780, 28320, 28840, 30385, 33040, 34608, 36462, 39648, 42539, 43260, 48616, 49440, 49560, 57680, 60770, 66080, 69216, 72924, 85078, 86520, 91155, 97232, 99120, 115360, 121540, 127617, 145848, 170156, 173040, 182310, 194464, 198240, 212695, 243080, 255234, 291696, 340312, 346080, 364620, 425390, 486160, 510468, 583392, 638085, 680624, 729240, 850780, 972320, 1020936, 1276170, 1361248, 1458480, 1701560, 2041872, 2552340, 2916960, 3403120, 4083744, 5104680, 6806240, 10209360, 20418720]

約数ペア:

[(1, 20418720), (2, 10209360), (3, 6806240), (4, 5104680), (5, 4083744), (6, 3403120), (7, 2916960), (8, 2552340), (10, 2041872), (12, 1701560), (14, 1458480), (15, 1361248), (16, 1276170), (20, 1020936), (21, 972320), (24, 850780), (28, 729240), (30, 680624), (32, 638085), (35, 583392), (40, 510468), (42, 486160), (48, 425390), (56, 364620), (59, 346080), (60, 340312), (70, 291696), (80, 255234), (84, 243080), (96, 212695), (103, 198240), (105, 194464), (112, 182310), (118, 173040), (120, 170156), (140, 145848), (160, 127617), (168, 121540), (177, 115360), (206, 99120), (210, 97232), (224, 91155), (236, 86520), (240, 85078), (280, 72924), (295, 69216), (309, 66080), (336, 60770), (354, 57680), (412, 49560), (413, 49440), (420, 48616), (472, 43260), (480, 42539), (515, 39648), (560, 36462), (590, 34608), (618, 33040), (672, 30385), (708, 28840), (721, 28320), (824, 24780), (826, 24720), (840, 24308), (885, 23072), (944, 21630), (1030, 19824), (1120, 18231), (1180, 17304), (1236, 16520), (1239, 16480), (1416, 14420), (1442, 14160), (1545, 13216), (1648, 12390), (1652, 12360), (1680, 12154), (1770, 11536), (1888, 10815), (2060, 9912), (2065, 9888), (2163, 9440), (2360, 8652), (2472, 8260), (2478, 8240), (2832, 7210), (2884, 7080), (3090, 6608), (3296, 6195), (3304, 6180), (3360, 6077), (3540, 5768), (3605, 5664), (4120, 4956), (4130, 4944), (4326, 4720)]