2158920

素因数分解:

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

素因数の和:2019

約数の個数: 64

約数和(自身を含む): 7200000

約数和(自身を除く): 5041080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 1999, 3998, 5997, 7996, 9995, 11994, 15992, 17991, 19990, 23988, 29985, 35982, 39980, 47976, 53973, 59970, 71964, 79960, 89955, 107946, 119940, 143928, 179910, 215892, 239880, 269865, 359820, 431784, 539730, 719640, 1079460, 2158920]

約数ペア:

[(1, 2158920), (2, 1079460), (3, 719640), (4, 539730), (5, 431784), (6, 359820), (8, 269865), (9, 239880), (10, 215892), (12, 179910), (15, 143928), (18, 119940), (20, 107946), (24, 89955), (27, 79960), (30, 71964), (36, 59970), (40, 53973), (45, 47976), (54, 39980), (60, 35982), (72, 29985), (90, 23988), (108, 19990), (120, 17991), (135, 15992), (180, 11994), (216, 9995), (270, 7996), (360, 5997), (540, 3998), (1080, 1999)]