7978500

素因数分解:

$2^2\times 3^4\times 5^3\times {\mathrm{197}}^1$

素因数の和:228

約数の個数: 120

約数和(自身を含む): 26162136

約数和(自身を除く): 18183636

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 125, 135, 150, 162, 180, 197, 225, 250, 270, 300, 324, 375, 394, 405, 450, 500, 540, 591, 675, 750, 788, 810, 900, 985, 1125, 1182, 1350, 1500, 1620, 1773, 1970, 2025, 2250, 2364, 2700, 2955, 3375, 3546, 3940, 4050, 4500, 4925, 5319, 5910, 6750, 7092, 8100, 8865, 9850, 10125, 10638, 11820, 13500, 14775, 15957, 17730, 19700, 20250, 21276, 24625, 26595, 29550, 31914, 35460, 40500, 44325, 49250, 53190, 59100, 63828, 73875, 79785, 88650, 98500, 106380, 132975, 147750, 159570, 177300, 221625, 265950, 295500, 319140, 398925, 443250, 531900, 664875, 797850, 886500, 1329750, 1595700, 1994625, 2659500, 3989250, 7978500]

約数ペア:

[(1, 7978500), (2, 3989250), (3, 2659500), (4, 1994625), (5, 1595700), (6, 1329750), (9, 886500), (10, 797850), (12, 664875), (15, 531900), (18, 443250), (20, 398925), (25, 319140), (27, 295500), (30, 265950), (36, 221625), (45, 177300), (50, 159570), (54, 147750), (60, 132975), (75, 106380), (81, 98500), (90, 88650), (100, 79785), (108, 73875), (125, 63828), (135, 59100), (150, 53190), (162, 49250), (180, 44325), (197, 40500), (225, 35460), (250, 31914), (270, 29550), (300, 26595), (324, 24625), (375, 21276), (394, 20250), (405, 19700), (450, 17730), (500, 15957), (540, 14775), (591, 13500), (675, 11820), (750, 10638), (788, 10125), (810, 9850), (900, 8865), (985, 8100), (1125, 7092), (1182, 6750), (1350, 5910), (1500, 5319), (1620, 4925), (1773, 4500), (1970, 4050), (2025, 3940), (2250, 3546), (2364, 3375), (2700, 2955)]