16381680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^3\times {\mathrm{199}}^1$

素因数の和:236

約数の個数: 160

約数和(自身を含む): 59520000

約数和(自身を除く): 43138320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 199, 210, 240, 245, 280, 294, 336, 343, 392, 398, 420, 490, 560, 588, 597, 686, 735, 784, 796, 840, 980, 995, 1029, 1176, 1194, 1372, 1393, 1470, 1592, 1680, 1715, 1960, 1990, 2058, 2352, 2388, 2744, 2786, 2940, 2985, 3184, 3430, 3920, 3980, 4116, 4179, 4776, 5145, 5488, 5572, 5880, 5970, 6860, 6965, 7960, 8232, 8358, 9552, 9751, 10290, 11144, 11760, 11940, 13720, 13930, 15920, 16464, 16716, 19502, 20580, 20895, 22288, 23880, 27440, 27860, 29253, 33432, 39004, 41160, 41790, 47760, 48755, 55720, 58506, 66864, 68257, 78008, 82320, 83580, 97510, 111440, 117012, 136514, 146265, 156016, 167160, 195020, 204771, 234024, 273028, 292530, 334320, 341285, 390040, 409542, 468048, 546056, 585060, 682570, 780080, 819084, 1023855, 1092112, 1170120, 1365140, 1638168, 2047710, 2340240, 2730280, 3276336, 4095420, 5460560, 8190840, 16381680]

約数ペア:

[(1, 16381680), (2, 8190840), (3, 5460560), (4, 4095420), (5, 3276336), (6, 2730280), (7, 2340240), (8, 2047710), (10, 1638168), (12, 1365140), (14, 1170120), (15, 1092112), (16, 1023855), (20, 819084), (21, 780080), (24, 682570), (28, 585060), (30, 546056), (35, 468048), (40, 409542), (42, 390040), (48, 341285), (49, 334320), (56, 292530), (60, 273028), (70, 234024), (80, 204771), (84, 195020), (98, 167160), (105, 156016), (112, 146265), (120, 136514), (140, 117012), (147, 111440), (168, 97510), (196, 83580), (199, 82320), (210, 78008), (240, 68257), (245, 66864), (280, 58506), (294, 55720), (336, 48755), (343, 47760), (392, 41790), (398, 41160), (420, 39004), (490, 33432), (560, 29253), (588, 27860), (597, 27440), (686, 23880), (735, 22288), (784, 20895), (796, 20580), (840, 19502), (980, 16716), (995, 16464), (1029, 15920), (1176, 13930), (1194, 13720), (1372, 11940), (1393, 11760), (1470, 11144), (1592, 10290), (1680, 9751), (1715, 9552), (1960, 8358), (1990, 8232), (2058, 7960), (2352, 6965), (2388, 6860), (2744, 5970), (2786, 5880), (2940, 5572), (2985, 5488), (3184, 5145), (3430, 4776), (3920, 4179), (3980, 4116)]