21173600

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:245

約数の個数: 144

約数和(自身を含む): 62496000

約数和(自身を除く): 41322400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 25, 28, 32, 35, 38, 40, 50, 56, 70, 76, 80, 95, 100, 112, 133, 140, 152, 160, 175, 190, 199, 200, 224, 266, 280, 304, 350, 380, 398, 400, 475, 532, 560, 608, 665, 700, 760, 796, 800, 950, 995, 1064, 1120, 1330, 1393, 1400, 1520, 1592, 1900, 1990, 2128, 2660, 2786, 2800, 3040, 3184, 3325, 3781, 3800, 3980, 4256, 4975, 5320, 5572, 5600, 6368, 6650, 6965, 7562, 7600, 7960, 9950, 10640, 11144, 13300, 13930, 15124, 15200, 15920, 18905, 19900, 21280, 22288, 26467, 26600, 27860, 30248, 31840, 34825, 37810, 39800, 44576, 52934, 53200, 55720, 60496, 69650, 75620, 79600, 94525, 105868, 106400, 111440, 120992, 132335, 139300, 151240, 159200, 189050, 211736, 222880, 264670, 278600, 302480, 378100, 423472, 529340, 557200, 604960, 661675, 756200, 846944, 1058680, 1114400, 1323350, 1512400, 2117360, 2646700, 3024800, 4234720, 5293400, 10586800, 21173600]

約数ペア:

[(1, 21173600), (2, 10586800), (4, 5293400), (5, 4234720), (7, 3024800), (8, 2646700), (10, 2117360), (14, 1512400), (16, 1323350), (19, 1114400), (20, 1058680), (25, 846944), (28, 756200), (32, 661675), (35, 604960), (38, 557200), (40, 529340), (50, 423472), (56, 378100), (70, 302480), (76, 278600), (80, 264670), (95, 222880), (100, 211736), (112, 189050), (133, 159200), (140, 151240), (152, 139300), (160, 132335), (175, 120992), (190, 111440), (199, 106400), (200, 105868), (224, 94525), (266, 79600), (280, 75620), (304, 69650), (350, 60496), (380, 55720), (398, 53200), (400, 52934), (475, 44576), (532, 39800), (560, 37810), (608, 34825), (665, 31840), (700, 30248), (760, 27860), (796, 26600), (800, 26467), (950, 22288), (995, 21280), (1064, 19900), (1120, 18905), (1330, 15920), (1393, 15200), (1400, 15124), (1520, 13930), (1592, 13300), (1900, 11144), (1990, 10640), (2128, 9950), (2660, 7960), (2786, 7600), (2800, 7562), (3040, 6965), (3184, 6650), (3325, 6368), (3781, 5600), (3800, 5572), (3980, 5320), (4256, 4975)]