1627500

素因数分解:

$2^2\times 3^1\times 5^4\times 7^1\times {\mathrm{31}}^1$

素因数の和:65

約数の個数: 120

約数和(自身を含む): 5598208

約数和(自身を除く): 3970708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 31, 35, 42, 50, 60, 62, 70, 75, 84, 93, 100, 105, 124, 125, 140, 150, 155, 175, 186, 210, 217, 250, 300, 310, 350, 372, 375, 420, 434, 465, 500, 525, 620, 625, 651, 700, 750, 775, 868, 875, 930, 1050, 1085, 1250, 1302, 1500, 1550, 1750, 1860, 1875, 2100, 2170, 2325, 2500, 2604, 2625, 3100, 3255, 3500, 3750, 3875, 4340, 4375, 4650, 5250, 5425, 6510, 7500, 7750, 8750, 9300, 10500, 10850, 11625, 13020, 13125, 15500, 16275, 17500, 19375, 21700, 23250, 26250, 27125, 32550, 38750, 46500, 52500, 54250, 58125, 65100, 77500, 81375, 108500, 116250, 135625, 162750, 232500, 271250, 325500, 406875, 542500, 813750, 1627500]

約数ペア:

[(1, 1627500), (2, 813750), (3, 542500), (4, 406875), (5, 325500), (6, 271250), (7, 232500), (10, 162750), (12, 135625), (14, 116250), (15, 108500), (20, 81375), (21, 77500), (25, 65100), (28, 58125), (30, 54250), (31, 52500), (35, 46500), (42, 38750), (50, 32550), (60, 27125), (62, 26250), (70, 23250), (75, 21700), (84, 19375), (93, 17500), (100, 16275), (105, 15500), (124, 13125), (125, 13020), (140, 11625), (150, 10850), (155, 10500), (175, 9300), (186, 8750), (210, 7750), (217, 7500), (250, 6510), (300, 5425), (310, 5250), (350, 4650), (372, 4375), (375, 4340), (420, 3875), (434, 3750), (465, 3500), (500, 3255), (525, 3100), (620, 2625), (625, 2604), (651, 2500), (700, 2325), (750, 2170), (775, 2100), (868, 1875), (875, 1860), (930, 1750), (1050, 1550), (1085, 1500), (1250, 1302)]