2878560

素因数分解:

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

素因数の和:2020

約数の個数: 72

約数和(自身を含む): 9828000

約数和(自身を除く): 6949440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 1999, 3998, 5997, 7996, 9995, 11994, 15992, 17991, 19990, 23988, 29985, 31984, 35982, 39980, 47976, 59970, 63968, 71964, 79960, 89955, 95952, 119940, 143928, 159920, 179910, 191904, 239880, 287856, 319840, 359820, 479760, 575712, 719640, 959520, 1439280, 2878560]

約数ペア:

[(1, 2878560), (2, 1439280), (3, 959520), (4, 719640), (5, 575712), (6, 479760), (8, 359820), (9, 319840), (10, 287856), (12, 239880), (15, 191904), (16, 179910), (18, 159920), (20, 143928), (24, 119940), (30, 95952), (32, 89955), (36, 79960), (40, 71964), (45, 63968), (48, 59970), (60, 47976), (72, 39980), (80, 35982), (90, 31984), (96, 29985), (120, 23988), (144, 19990), (160, 17991), (180, 15992), (240, 11994), (288, 9995), (360, 7996), (480, 5997), (720, 3998), (1440, 1999)]