389648000

素因数分解:

$2^7\times 5^3\times 7^3\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 256

約数和(自身を含む): 1145664000

約数和(自身を除く): 756016000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 71, 80, 98, 100, 112, 125, 128, 140, 142, 160, 175, 196, 200, 224, 245, 250, 280, 284, 320, 343, 350, 355, 392, 400, 448, 490, 497, 500, 560, 568, 640, 686, 700, 710, 784, 800, 875, 896, 980, 994, 1000, 1120, 1136, 1225, 1372, 1400, 1420, 1568, 1600, 1715, 1750, 1775, 1960, 1988, 2000, 2240, 2272, 2450, 2485, 2744, 2800, 2840, 3136, 3200, 3430, 3479, 3500, 3550, 3920, 3976, 4000, 4480, 4544, 4900, 4970, 5488, 5600, 5680, 6125, 6272, 6860, 6958, 7000, 7100, 7840, 7952, 8000, 8575, 8875, 9088, 9800, 9940, 10976, 11200, 11360, 12250, 12425, 13720, 13916, 14000, 14200, 15680, 15904, 16000, 17150, 17395, 17750, 19600, 19880, 21952, 22400, 22720, 24353, 24500, 24850, 27440, 27832, 28000, 28400, 31360, 31808, 34300, 34790, 35500, 39200, 39760, 42875, 43904, 45440, 48706, 49000, 49700, 54880, 55664, 56000, 56800, 62125, 63616, 68600, 69580, 71000, 78400, 79520, 85750, 86975, 97412, 98000, 99400, 109760, 111328, 112000, 113600, 121765, 124250, 137200, 139160, 142000, 156800, 159040, 171500, 173950, 194824, 196000, 198800, 219520, 222656, 227200, 243530, 248500, 274400, 278320, 284000, 318080, 343000, 347900, 389648, 392000, 397600, 434875, 445312, 487060, 497000, 548800, 556640, 568000, 608825, 686000, 695800, 779296, 784000, 795200, 869750, 974120, 994000, 1097600, 1113280, 1136000, 1217650, 1372000, 1391600, 1558592, 1590400, 1739500, 1948240, 1988000, 2226560, 2435300, 2744000, 2783200, 3044125, 3117184, 3479000, 3896480, 3976000, 4870600, 5488000, 5566400, 6088250, 6958000, 7792960, 7952000, 9741200, 11132800, 12176500, 13916000, 15585920, 19482400, 24353000, 27832000, 38964800, 48706000, 55664000, 77929600, 97412000, 194824000, 389648000]

約数ペア:

[(1, 389648000), (2, 194824000), (4, 97412000), (5, 77929600), (7, 55664000), (8, 48706000), (10, 38964800), (14, 27832000), (16, 24353000), (20, 19482400), (25, 15585920), (28, 13916000), (32, 12176500), (35, 11132800), (40, 9741200), (49, 7952000), (50, 7792960), (56, 6958000), (64, 6088250), (70, 5566400), (71, 5488000), (80, 4870600), (98, 3976000), (100, 3896480), (112, 3479000), (125, 3117184), (128, 3044125), (140, 2783200), (142, 2744000), (160, 2435300), (175, 2226560), (196, 1988000), (200, 1948240), (224, 1739500), (245, 1590400), (250, 1558592), (280, 1391600), (284, 1372000), (320, 1217650), (343, 1136000), (350, 1113280), (355, 1097600), (392, 994000), (400, 974120), (448, 869750), (490, 795200), (497, 784000), (500, 779296), (560, 695800), (568, 686000), (640, 608825), (686, 568000), (700, 556640), (710, 548800), (784, 497000), (800, 487060), (875, 445312), (896, 434875), (980, 397600), (994, 392000), (1000, 389648), (1120, 347900), (1136, 343000), (1225, 318080), (1372, 284000), (1400, 278320), (1420, 274400), (1568, 248500), (1600, 243530), (1715, 227200), (1750, 222656), (1775, 219520), (1960, 198800), (1988, 196000), (2000, 194824), (2240, 173950), (2272, 171500), (2450, 159040), (2485, 156800), (2744, 142000), (2800, 139160), (2840, 137200), (3136, 124250), (3200, 121765), (3430, 113600), (3479, 112000), (3500, 111328), (3550, 109760), (3920, 99400), (3976, 98000), (4000, 97412), (4480, 86975), (4544, 85750), (4900, 79520), (4970, 78400), (5488, 71000), (5600, 69580), (5680, 68600), (6125, 63616), (6272, 62125), (6860, 56800), (6958, 56000), (7000, 55664), (7100, 54880), (7840, 49700), (7952, 49000), (8000, 48706), (8575, 45440), (8875, 43904), (9088, 42875), (9800, 39760), (9940, 39200), (10976, 35500), (11200, 34790), (11360, 34300), (12250, 31808), (12425, 31360), (13720, 28400), (13916, 28000), (14000, 27832), (14200, 27440), (15680, 24850), (15904, 24500), (16000, 24353), (17150, 22720), (17395, 22400), (17750, 21952), (19600, 19880)]