31983904000

素因数分解:

$2^8\times 5^3\times {\mathrm{499}}^1\times {\mathrm{2003}}^1$

素因数の和:2533

約数の個数: 144

約数和(自身を含む): 79875432000

約数和(自身を除く): 47891528000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 499, 500, 640, 800, 998, 1000, 1280, 1600, 1996, 2000, 2003, 2495, 3200, 3992, 4000, 4006, 4990, 6400, 7984, 8000, 8012, 9980, 10015, 12475, 15968, 16000, 16024, 19960, 20030, 24950, 31936, 32000, 32048, 39920, 40060, 49900, 50075, 62375, 63872, 64096, 79840, 80120, 99800, 100150, 124750, 127744, 128192, 159680, 160240, 199600, 200300, 249500, 250375, 256384, 319360, 320480, 399200, 400600, 499000, 500750, 512768, 638720, 640960, 798400, 801200, 998000, 999497, 1001500, 1281920, 1596800, 1602400, 1996000, 1998994, 2003000, 2563840, 3193600, 3204800, 3992000, 3997988, 4006000, 4997485, 6409600, 7984000, 7995976, 8012000, 9994970, 12819200, 15968000, 15991952, 16024000, 19989940, 24987425, 31983904, 32048000, 39979880, 49974850, 63967808, 64096000, 79959760, 99949700, 124937125, 127935616, 159919520, 199899400, 249874250, 255871232, 319839040, 399798800, 499748500, 639678080, 799597600, 999497000, 1279356160, 1599195200, 1998994000, 3198390400, 3997988000, 6396780800, 7995976000, 15991952000, 31983904000]

約数ペア:

[(1, 31983904000), (2, 15991952000), (4, 7995976000), (5, 6396780800), (8, 3997988000), (10, 3198390400), (16, 1998994000), (20, 1599195200), (25, 1279356160), (32, 999497000), (40, 799597600), (50, 639678080), (64, 499748500), (80, 399798800), (100, 319839040), (125, 255871232), (128, 249874250), (160, 199899400), (200, 159919520), (250, 127935616), (256, 124937125), (320, 99949700), (400, 79959760), (499, 64096000), (500, 63967808), (640, 49974850), (800, 39979880), (998, 32048000), (1000, 31983904), (1280, 24987425), (1600, 19989940), (1996, 16024000), (2000, 15991952), (2003, 15968000), (2495, 12819200), (3200, 9994970), (3992, 8012000), (4000, 7995976), (4006, 7984000), (4990, 6409600), (6400, 4997485), (7984, 4006000), (8000, 3997988), (8012, 3992000), (9980, 3204800), (10015, 3193600), (12475, 2563840), (15968, 2003000), (16000, 1998994), (16024, 1996000), (19960, 1602400), (20030, 1596800), (24950, 1281920), (31936, 1001500), (32000, 999497), (32048, 998000), (39920, 801200), (40060, 798400), (49900, 640960), (50075, 638720), (62375, 512768), (63872, 500750), (64096, 499000), (79840, 400600), (80120, 399200), (99800, 320480), (100150, 319360), (124750, 256384), (127744, 250375), (128192, 249500), (159680, 200300), (160240, 199600)]