256928000

素因数分解:

$2^8\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:106

約数の個数: 288

約数和(自身を含む): 775477248

約数和(自身を除く): 518549248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 37, 40, 50, 56, 62, 64, 70, 74, 80, 100, 112, 124, 125, 128, 140, 148, 155, 160, 175, 185, 200, 217, 224, 248, 250, 256, 259, 280, 296, 310, 320, 350, 370, 400, 434, 448, 496, 500, 518, 560, 592, 620, 640, 700, 740, 775, 800, 868, 875, 896, 925, 992, 1000, 1036, 1085, 1120, 1147, 1184, 1240, 1280, 1295, 1400, 1480, 1550, 1600, 1736, 1750, 1792, 1850, 1984, 2000, 2072, 2170, 2240, 2294, 2368, 2480, 2590, 2800, 2960, 3100, 3200, 3472, 3500, 3700, 3875, 3968, 4000, 4144, 4340, 4480, 4588, 4625, 4736, 4960, 5180, 5425, 5600, 5735, 5920, 6200, 6400, 6475, 6944, 7000, 7400, 7750, 7936, 8000, 8029, 8288, 8680, 8960, 9176, 9250, 9472, 9920, 10360, 10850, 11200, 11470, 11840, 12400, 12950, 13888, 14000, 14800, 15500, 16000, 16058, 16576, 17360, 18352, 18500, 19840, 20720, 21700, 22400, 22940, 23680, 24800, 25900, 27125, 27776, 28000, 28675, 29600, 31000, 32000, 32116, 32375, 33152, 34720, 36704, 37000, 39680, 40145, 41440, 43400, 44800, 45880, 47360, 49600, 51800, 54250, 55552, 56000, 57350, 59200, 62000, 64232, 64750, 66304, 69440, 73408, 74000, 80290, 82880, 86800, 91760, 99200, 103600, 108500, 112000, 114700, 118400, 124000, 128464, 129500, 138880, 143375, 146816, 148000, 160580, 165760, 173600, 183520, 198400, 200725, 207200, 217000, 224000, 229400, 236800, 248000, 256928, 259000, 277760, 286750, 293632, 296000, 321160, 331520, 347200, 367040, 401450, 414400, 434000, 458800, 496000, 513856, 518000, 573500, 592000, 642320, 694400, 734080, 802900, 828800, 868000, 917600, 992000, 1003625, 1027712, 1036000, 1147000, 1184000, 1284640, 1388800, 1468160, 1605800, 1657600, 1736000, 1835200, 2007250, 2055424, 2072000, 2294000, 2569280, 3211600, 3472000, 3670400, 4014500, 4144000, 4588000, 5138560, 6423200, 6944000, 7340800, 8029000, 8288000, 9176000, 10277120, 12846400, 16058000, 18352000, 25692800, 32116000, 36704000, 51385600, 64232000, 128464000, 256928000]

約数ペア:

[(1, 256928000), (2, 128464000), (4, 64232000), (5, 51385600), (7, 36704000), (8, 32116000), (10, 25692800), (14, 18352000), (16, 16058000), (20, 12846400), (25, 10277120), (28, 9176000), (31, 8288000), (32, 8029000), (35, 7340800), (37, 6944000), (40, 6423200), (50, 5138560), (56, 4588000), (62, 4144000), (64, 4014500), (70, 3670400), (74, 3472000), (80, 3211600), (100, 2569280), (112, 2294000), (124, 2072000), (125, 2055424), (128, 2007250), (140, 1835200), (148, 1736000), (155, 1657600), (160, 1605800), (175, 1468160), (185, 1388800), (200, 1284640), (217, 1184000), (224, 1147000), (248, 1036000), (250, 1027712), (256, 1003625), (259, 992000), (280, 917600), (296, 868000), (310, 828800), (320, 802900), (350, 734080), (370, 694400), (400, 642320), (434, 592000), (448, 573500), (496, 518000), (500, 513856), (518, 496000), (560, 458800), (592, 434000), (620, 414400), (640, 401450), (700, 367040), (740, 347200), (775, 331520), (800, 321160), (868, 296000), (875, 293632), (896, 286750), (925, 277760), (992, 259000), (1000, 256928), (1036, 248000), (1085, 236800), (1120, 229400), (1147, 224000), (1184, 217000), (1240, 207200), (1280, 200725), (1295, 198400), (1400, 183520), (1480, 173600), (1550, 165760), (1600, 160580), (1736, 148000), (1750, 146816), (1792, 143375), (1850, 138880), (1984, 129500), (2000, 128464), (2072, 124000), (2170, 118400), (2240, 114700), (2294, 112000), (2368, 108500), (2480, 103600), (2590, 99200), (2800, 91760), (2960, 86800), (3100, 82880), (3200, 80290), (3472, 74000), (3500, 73408), (3700, 69440), (3875, 66304), (3968, 64750), (4000, 64232), (4144, 62000), (4340, 59200), (4480, 57350), (4588, 56000), (4625, 55552), (4736, 54250), (4960, 51800), (5180, 49600), (5425, 47360), (5600, 45880), (5735, 44800), (5920, 43400), (6200, 41440), (6400, 40145), (6475, 39680), (6944, 37000), (7000, 36704), (7400, 34720), (7750, 33152), (7936, 32375), (8000, 32116), (8029, 32000), (8288, 31000), (8680, 29600), (8960, 28675), (9176, 28000), (9250, 27776), (9472, 27125), (9920, 25900), (10360, 24800), (10850, 23680), (11200, 22940), (11470, 22400), (11840, 21700), (12400, 20720), (12950, 19840), (13888, 18500), (14000, 18352), (14800, 17360), (15500, 16576), (16000, 16058)]