80985000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{5399}}^1$

素因数の和:5428

約数の個数: 80

約数和(自身を含む): 253044000

約数和(自身を除く): 172059000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 625, 750, 1000, 1250, 1500, 1875, 2500, 3000, 3750, 5000, 5399, 7500, 10798, 15000, 16197, 21596, 26995, 32394, 43192, 53990, 64788, 80985, 107980, 129576, 134975, 161970, 215960, 269950, 323940, 404925, 539900, 647880, 674875, 809850, 1079800, 1349750, 1619700, 2024625, 2699500, 3239400, 3374375, 4049250, 5399000, 6748750, 8098500, 10123125, 13497500, 16197000, 20246250, 26995000, 40492500, 80985000]

約数ペア:

[(1, 80985000), (2, 40492500), (3, 26995000), (4, 20246250), (5, 16197000), (6, 13497500), (8, 10123125), (10, 8098500), (12, 6748750), (15, 5399000), (20, 4049250), (24, 3374375), (25, 3239400), (30, 2699500), (40, 2024625), (50, 1619700), (60, 1349750), (75, 1079800), (100, 809850), (120, 674875), (125, 647880), (150, 539900), (200, 404925), (250, 323940), (300, 269950), (375, 215960), (500, 161970), (600, 134975), (625, 129576), (750, 107980), (1000, 80985), (1250, 64788), (1500, 53990), (1875, 43192), (2500, 32394), (3000, 26995), (3750, 21596), (5000, 16197), (5399, 15000), (7500, 10798)]