20343750

素因数分解:

$2^1\times 3^1\times 5^6\times 7^1\times {\mathrm{31}}^1$

素因数の和:73

約数の個数: 112

約数和(自身を含む): 59999232

約数和(自身を除く): 39655482

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 31, 35, 42, 50, 62, 70, 75, 93, 105, 125, 150, 155, 175, 186, 210, 217, 250, 310, 350, 375, 434, 465, 525, 625, 651, 750, 775, 875, 930, 1050, 1085, 1250, 1302, 1550, 1750, 1875, 2170, 2325, 2625, 3125, 3255, 3750, 3875, 4375, 4650, 5250, 5425, 6250, 6510, 7750, 8750, 9375, 10850, 11625, 13125, 15625, 16275, 18750, 19375, 21875, 23250, 26250, 27125, 31250, 32550, 38750, 43750, 46875, 54250, 58125, 65625, 81375, 93750, 96875, 109375, 116250, 131250, 135625, 162750, 193750, 218750, 271250, 290625, 328125, 406875, 484375, 581250, 656250, 678125, 813750, 968750, 1356250, 1453125, 2034375, 2906250, 3390625, 4068750, 6781250, 10171875, 20343750]

約数ペア:

[(1, 20343750), (2, 10171875), (3, 6781250), (5, 4068750), (6, 3390625), (7, 2906250), (10, 2034375), (14, 1453125), (15, 1356250), (21, 968750), (25, 813750), (30, 678125), (31, 656250), (35, 581250), (42, 484375), (50, 406875), (62, 328125), (70, 290625), (75, 271250), (93, 218750), (105, 193750), (125, 162750), (150, 135625), (155, 131250), (175, 116250), (186, 109375), (210, 96875), (217, 93750), (250, 81375), (310, 65625), (350, 58125), (375, 54250), (434, 46875), (465, 43750), (525, 38750), (625, 32550), (651, 31250), (750, 27125), (775, 26250), (875, 23250), (930, 21875), (1050, 19375), (1085, 18750), (1250, 16275), (1302, 15625), (1550, 13125), (1750, 11625), (1875, 10850), (2170, 9375), (2325, 8750), (2625, 7750), (3125, 6510), (3255, 6250), (3750, 5425), (3875, 5250), (4375, 4650)]