780000

素因数分解:

$2^5\times 3^1\times 5^4\times {\mathrm{13}}^1$

素因数の和:46

約数の個数: 120

約数和(自身を含む): 2755368

約数和(自身を除く): 1975368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 65, 75, 78, 80, 96, 100, 104, 120, 125, 130, 150, 156, 160, 195, 200, 208, 240, 250, 260, 300, 312, 325, 375, 390, 400, 416, 480, 500, 520, 600, 624, 625, 650, 750, 780, 800, 975, 1000, 1040, 1200, 1248, 1250, 1300, 1500, 1560, 1625, 1875, 1950, 2000, 2080, 2400, 2500, 2600, 3000, 3120, 3250, 3750, 3900, 4000, 4875, 5000, 5200, 6000, 6240, 6500, 7500, 7800, 8125, 9750, 10000, 10400, 12000, 13000, 15000, 15600, 16250, 19500, 20000, 24375, 26000, 30000, 31200, 32500, 39000, 48750, 52000, 60000, 65000, 78000, 97500, 130000, 156000, 195000, 260000, 390000, 780000]

約数ペア:

[(1, 780000), (2, 390000), (3, 260000), (4, 195000), (5, 156000), (6, 130000), (8, 97500), (10, 78000), (12, 65000), (13, 60000), (15, 52000), (16, 48750), (20, 39000), (24, 32500), (25, 31200), (26, 30000), (30, 26000), (32, 24375), (39, 20000), (40, 19500), (48, 16250), (50, 15600), (52, 15000), (60, 13000), (65, 12000), (75, 10400), (78, 10000), (80, 9750), (96, 8125), (100, 7800), (104, 7500), (120, 6500), (125, 6240), (130, 6000), (150, 5200), (156, 5000), (160, 4875), (195, 4000), (200, 3900), (208, 3750), (240, 3250), (250, 3120), (260, 3000), (300, 2600), (312, 2500), (325, 2400), (375, 2080), (390, 2000), (400, 1950), (416, 1875), (480, 1625), (500, 1560), (520, 1500), (600, 1300), (624, 1250), (625, 1248), (650, 1200), (750, 1040), (780, 1000), (800, 975)]