80991000

素因数分解:

$2^3\times 3^2\times 5^3\times {\mathrm{8999}}^1$

素因数の和:9026

約数の個数: 96

約数和(自身を含む): 273780000

約数和(自身を除く): 192789000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 125, 150, 180, 200, 225, 250, 300, 360, 375, 450, 500, 600, 750, 900, 1000, 1125, 1500, 1800, 2250, 3000, 4500, 8999, 9000, 17998, 26997, 35996, 44995, 53994, 71992, 80991, 89990, 107988, 134985, 161982, 179980, 215976, 224975, 269970, 323964, 359960, 404955, 449950, 539940, 647928, 674925, 809910, 899900, 1079880, 1124875, 1349850, 1619820, 1799800, 2024775, 2249750, 2699700, 3239640, 3374625, 4049550, 4499500, 5399400, 6749250, 8099100, 8999000, 10123875, 13498500, 16198200, 20247750, 26997000, 40495500, 80991000]

約数ペア:

[(1, 80991000), (2, 40495500), (3, 26997000), (4, 20247750), (5, 16198200), (6, 13498500), (8, 10123875), (9, 8999000), (10, 8099100), (12, 6749250), (15, 5399400), (18, 4499500), (20, 4049550), (24, 3374625), (25, 3239640), (30, 2699700), (36, 2249750), (40, 2024775), (45, 1799800), (50, 1619820), (60, 1349850), (72, 1124875), (75, 1079880), (90, 899900), (100, 809910), (120, 674925), (125, 647928), (150, 539940), (180, 449950), (200, 404955), (225, 359960), (250, 323964), (300, 269970), (360, 224975), (375, 215976), (450, 179980), (500, 161982), (600, 134985), (750, 107988), (900, 89990), (1000, 80991), (1125, 71992), (1500, 53994), (1800, 44995), (2250, 35996), (3000, 26997), (4500, 17998), (8999, 9000)]