78900000

素因数分解:

$2^5\times 3^1\times 5^5\times {\mathrm{263}}^1$

素因数の和:301

約数の個数: 144

約数和(自身を含む): 259858368

約数和(自身を除く): 180958368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 75, 80, 96, 100, 120, 125, 150, 160, 200, 240, 250, 263, 300, 375, 400, 480, 500, 526, 600, 625, 750, 789, 800, 1000, 1052, 1200, 1250, 1315, 1500, 1578, 1875, 2000, 2104, 2400, 2500, 2630, 3000, 3125, 3156, 3750, 3945, 4000, 4208, 5000, 5260, 6000, 6250, 6312, 6575, 7500, 7890, 8416, 9375, 10000, 10520, 12000, 12500, 12624, 13150, 15000, 15780, 18750, 19725, 20000, 21040, 25000, 25248, 26300, 30000, 31560, 32875, 37500, 39450, 42080, 50000, 52600, 60000, 63120, 65750, 75000, 78900, 98625, 100000, 105200, 126240, 131500, 150000, 157800, 164375, 197250, 210400, 263000, 300000, 315600, 328750, 394500, 493125, 526000, 631200, 657500, 789000, 821875, 986250, 1052000, 1315000, 1578000, 1643750, 1972500, 2465625, 2630000, 3156000, 3287500, 3945000, 4931250, 5260000, 6575000, 7890000, 9862500, 13150000, 15780000, 19725000, 26300000, 39450000, 78900000]

約数ペア:

[(1, 78900000), (2, 39450000), (3, 26300000), (4, 19725000), (5, 15780000), (6, 13150000), (8, 9862500), (10, 7890000), (12, 6575000), (15, 5260000), (16, 4931250), (20, 3945000), (24, 3287500), (25, 3156000), (30, 2630000), (32, 2465625), (40, 1972500), (48, 1643750), (50, 1578000), (60, 1315000), (75, 1052000), (80, 986250), (96, 821875), (100, 789000), (120, 657500), (125, 631200), (150, 526000), (160, 493125), (200, 394500), (240, 328750), (250, 315600), (263, 300000), (300, 263000), (375, 210400), (400, 197250), (480, 164375), (500, 157800), (526, 150000), (600, 131500), (625, 126240), (750, 105200), (789, 100000), (800, 98625), (1000, 78900), (1052, 75000), (1200, 65750), (1250, 63120), (1315, 60000), (1500, 52600), (1578, 50000), (1875, 42080), (2000, 39450), (2104, 37500), (2400, 32875), (2500, 31560), (2630, 30000), (3000, 26300), (3125, 25248), (3156, 25000), (3750, 21040), (3945, 20000), (4000, 19725), (4208, 18750), (5000, 15780), (5260, 15000), (6000, 13150), (6250, 12624), (6312, 12500), (6575, 12000), (7500, 10520), (7890, 10000), (8416, 9375)]