7800000

素因数分解:

$2^6\times 3^1\times 5^5\times {\mathrm{13}}^1$

素因数の和:53

約数の個数: 168

約数和(自身を含む): 27779472

約数和(自身を除く): 19979472

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, 64, 65, 75, 78, 80, 96, 100, 104, 120, 125, 130, 150, 156, 160, 192, 195, 200, 208, 240, 250, 260, 300, 312, 320, 325, 375, 390, 400, 416, 480, 500, 520, 600, 624, 625, 650, 750, 780, 800, 832, 960, 975, 1000, 1040, 1200, 1248, 1250, 1300, 1500, 1560, 1600, 1625, 1875, 1950, 2000, 2080, 2400, 2496, 2500, 2600, 3000, 3120, 3125, 3250, 3750, 3900, 4000, 4160, 4800, 4875, 5000, 5200, 6000, 6240, 6250, 6500, 7500, 7800, 8000, 8125, 9375, 9750, 10000, 10400, 12000, 12480, 12500, 13000, 15000, 15600, 16250, 18750, 19500, 20000, 20800, 24000, 24375, 25000, 26000, 30000, 31200, 32500, 37500, 39000, 40000, 40625, 48750, 50000, 52000, 60000, 62400, 65000, 75000, 78000, 81250, 97500, 100000, 104000, 120000, 121875, 130000, 150000, 156000, 162500, 195000, 200000, 243750, 260000, 300000, 312000, 325000, 390000, 487500, 520000, 600000, 650000, 780000, 975000, 1300000, 1560000, 1950000, 2600000, 3900000, 7800000]

約数ペア:

[(1, 7800000), (2, 3900000), (3, 2600000), (4, 1950000), (5, 1560000), (6, 1300000), (8, 975000), (10, 780000), (12, 650000), (13, 600000), (15, 520000), (16, 487500), (20, 390000), (24, 325000), (25, 312000), (26, 300000), (30, 260000), (32, 243750), (39, 200000), (40, 195000), (48, 162500), (50, 156000), (52, 150000), (60, 130000), (64, 121875), (65, 120000), (75, 104000), (78, 100000), (80, 97500), (96, 81250), (100, 78000), (104, 75000), (120, 65000), (125, 62400), (130, 60000), (150, 52000), (156, 50000), (160, 48750), (192, 40625), (195, 40000), (200, 39000), (208, 37500), (240, 32500), (250, 31200), (260, 30000), (300, 26000), (312, 25000), (320, 24375), (325, 24000), (375, 20800), (390, 20000), (400, 19500), (416, 18750), (480, 16250), (500, 15600), (520, 15000), (600, 13000), (624, 12500), (625, 12480), (650, 12000), (750, 10400), (780, 10000), (800, 9750), (832, 9375), (960, 8125), (975, 8000), (1000, 7800), (1040, 7500), (1200, 6500), (1248, 6250), (1250, 6240), (1300, 6000), (1500, 5200), (1560, 5000), (1600, 4875), (1625, 4800), (1875, 4160), (1950, 4000), (2000, 3900), (2080, 3750), (2400, 3250), (2496, 3125), (2500, 3120), (2600, 3000)]