71964000

素因数分解:

$2^5\times 3^2\times 5^3\times {\mathrm{1999}}^1$

素因数の和:2030

約数の個数: 144

約数和(自身を含む): 255528000

約数和(自身を除く): 183564000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 96, 100, 120, 125, 144, 150, 160, 180, 200, 225, 240, 250, 288, 300, 360, 375, 400, 450, 480, 500, 600, 720, 750, 800, 900, 1000, 1125, 1200, 1440, 1500, 1800, 1999, 2000, 2250, 2400, 3000, 3600, 3998, 4000, 4500, 5997, 6000, 7200, 7996, 9000, 9995, 11994, 12000, 15992, 17991, 18000, 19990, 23988, 29985, 31984, 35982, 36000, 39980, 47976, 49975, 59970, 63968, 71964, 79960, 89955, 95952, 99950, 119940, 143928, 149925, 159920, 179910, 191904, 199900, 239880, 249875, 287856, 299850, 319840, 359820, 399800, 449775, 479760, 499750, 575712, 599700, 719640, 749625, 799600, 899550, 959520, 999500, 1199400, 1439280, 1499250, 1599200, 1799100, 1999000, 2248875, 2398800, 2878560, 2998500, 3598200, 3998000, 4497750, 4797600, 5997000, 7196400, 7996000, 8995500, 11994000, 14392800, 17991000, 23988000, 35982000, 71964000]

約数ペア:

[(1, 71964000), (2, 35982000), (3, 23988000), (4, 17991000), (5, 14392800), (6, 11994000), (8, 8995500), (9, 7996000), (10, 7196400), (12, 5997000), (15, 4797600), (16, 4497750), (18, 3998000), (20, 3598200), (24, 2998500), (25, 2878560), (30, 2398800), (32, 2248875), (36, 1999000), (40, 1799100), (45, 1599200), (48, 1499250), (50, 1439280), (60, 1199400), (72, 999500), (75, 959520), (80, 899550), (90, 799600), (96, 749625), (100, 719640), (120, 599700), (125, 575712), (144, 499750), (150, 479760), (160, 449775), (180, 399800), (200, 359820), (225, 319840), (240, 299850), (250, 287856), (288, 249875), (300, 239880), (360, 199900), (375, 191904), (400, 179910), (450, 159920), (480, 149925), (500, 143928), (600, 119940), (720, 99950), (750, 95952), (800, 89955), (900, 79960), (1000, 71964), (1125, 63968), (1200, 59970), (1440, 49975), (1500, 47976), (1800, 39980), (1999, 36000), (2000, 35982), (2250, 31984), (2400, 29985), (3000, 23988), (3600, 19990), (3998, 18000), (4000, 17991), (4500, 15992), (5997, 12000), (6000, 11994), (7200, 9995), (7996, 9000)]