495008000

素因数分解:

$2^8\times 5^3\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:561

約数の個数: 144

約数和(自身を含む): 1275456000

約数和(自身を除く): 780448000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 128, 155, 160, 200, 248, 250, 256, 310, 320, 400, 496, 499, 500, 620, 640, 775, 800, 992, 998, 1000, 1240, 1280, 1550, 1600, 1984, 1996, 2000, 2480, 2495, 3100, 3200, 3875, 3968, 3992, 4000, 4960, 4990, 6200, 6400, 7750, 7936, 7984, 8000, 9920, 9980, 12400, 12475, 15469, 15500, 15968, 16000, 19840, 19960, 24800, 24950, 30938, 31000, 31936, 32000, 39680, 39920, 49600, 49900, 61876, 62000, 62375, 63872, 77345, 79840, 99200, 99800, 123752, 124000, 124750, 127744, 154690, 159680, 198400, 199600, 247504, 248000, 249500, 309380, 319360, 386725, 399200, 495008, 496000, 499000, 618760, 638720, 773450, 798400, 990016, 992000, 998000, 1237520, 1546900, 1596800, 1933625, 1980032, 1996000, 2475040, 3093800, 3193600, 3867250, 3960064, 3992000, 4950080, 6187600, 7734500, 7984000, 9900160, 12375200, 15469000, 15968000, 19800320, 24750400, 30938000, 49500800, 61876000, 99001600, 123752000, 247504000, 495008000]

約数ペア:

[(1, 495008000), (2, 247504000), (4, 123752000), (5, 99001600), (8, 61876000), (10, 49500800), (16, 30938000), (20, 24750400), (25, 19800320), (31, 15968000), (32, 15469000), (40, 12375200), (50, 9900160), (62, 7984000), (64, 7734500), (80, 6187600), (100, 4950080), (124, 3992000), (125, 3960064), (128, 3867250), (155, 3193600), (160, 3093800), (200, 2475040), (248, 1996000), (250, 1980032), (256, 1933625), (310, 1596800), (320, 1546900), (400, 1237520), (496, 998000), (499, 992000), (500, 990016), (620, 798400), (640, 773450), (775, 638720), (800, 618760), (992, 499000), (998, 496000), (1000, 495008), (1240, 399200), (1280, 386725), (1550, 319360), (1600, 309380), (1984, 249500), (1996, 248000), (2000, 247504), (2480, 199600), (2495, 198400), (3100, 159680), (3200, 154690), (3875, 127744), (3968, 124750), (3992, 124000), (4000, 123752), (4960, 99800), (4990, 99200), (6200, 79840), (6400, 77345), (7750, 63872), (7936, 62375), (7984, 62000), (8000, 61876), (9920, 49900), (9980, 49600), (12400, 39920), (12475, 39680), (15469, 32000), (15500, 31936), (15968, 31000), (16000, 30938), (19840, 24950), (19960, 24800)]