20794400

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:187

約数の個数: 144

約数和(自身を含む): 59058720

約数和(自身を除く): 38264320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 25, 32, 34, 40, 44, 50, 55, 68, 80, 85, 88, 100, 110, 136, 139, 160, 170, 176, 187, 200, 220, 272, 275, 278, 340, 352, 374, 400, 425, 440, 544, 550, 556, 680, 695, 748, 800, 850, 880, 935, 1100, 1112, 1360, 1390, 1496, 1529, 1700, 1760, 1870, 2200, 2224, 2363, 2720, 2780, 2992, 3058, 3400, 3475, 3740, 4400, 4448, 4675, 4726, 5560, 5984, 6116, 6800, 6950, 7480, 7645, 8800, 9350, 9452, 11120, 11815, 12232, 13600, 13900, 14960, 15290, 18700, 18904, 22240, 23630, 24464, 25993, 27800, 29920, 30580, 37400, 37808, 38225, 47260, 48928, 51986, 55600, 59075, 61160, 74800, 75616, 76450, 94520, 103972, 111200, 118150, 122320, 129965, 149600, 152900, 189040, 207944, 236300, 244640, 259930, 305800, 378080, 415888, 472600, 519860, 611600, 649825, 831776, 945200, 1039720, 1223200, 1299650, 1890400, 2079440, 2599300, 4158880, 5198600, 10397200, 20794400]

約数ペア:

[(1, 20794400), (2, 10397200), (4, 5198600), (5, 4158880), (8, 2599300), (10, 2079440), (11, 1890400), (16, 1299650), (17, 1223200), (20, 1039720), (22, 945200), (25, 831776), (32, 649825), (34, 611600), (40, 519860), (44, 472600), (50, 415888), (55, 378080), (68, 305800), (80, 259930), (85, 244640), (88, 236300), (100, 207944), (110, 189040), (136, 152900), (139, 149600), (160, 129965), (170, 122320), (176, 118150), (187, 111200), (200, 103972), (220, 94520), (272, 76450), (275, 75616), (278, 74800), (340, 61160), (352, 59075), (374, 55600), (400, 51986), (425, 48928), (440, 47260), (544, 38225), (550, 37808), (556, 37400), (680, 30580), (695, 29920), (748, 27800), (800, 25993), (850, 24464), (880, 23630), (935, 22240), (1100, 18904), (1112, 18700), (1360, 15290), (1390, 14960), (1496, 13900), (1529, 13600), (1700, 12232), (1760, 11815), (1870, 11120), (2200, 9452), (2224, 9350), (2363, 8800), (2720, 7645), (2780, 7480), (2992, 6950), (3058, 6800), (3400, 6116), (3475, 5984), (3740, 5560), (4400, 4726), (4448, 4675)]