2712500

素因数分解:

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

素因数の和:67

約数の個数: 72

約数和(自身を含む): 6999552

約数和(自身を除く): 4287052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 125, 140, 155, 175, 217, 250, 310, 350, 434, 500, 620, 625, 700, 775, 868, 875, 1085, 1250, 1550, 1750, 2170, 2500, 3100, 3125, 3500, 3875, 4340, 4375, 5425, 6250, 7750, 8750, 10850, 12500, 15500, 17500, 19375, 21700, 21875, 27125, 38750, 43750, 54250, 77500, 87500, 96875, 108500, 135625, 193750, 271250, 387500, 542500, 678125, 1356250, 2712500]

約数ペア:

[(1, 2712500), (2, 1356250), (4, 678125), (5, 542500), (7, 387500), (10, 271250), (14, 193750), (20, 135625), (25, 108500), (28, 96875), (31, 87500), (35, 77500), (50, 54250), (62, 43750), (70, 38750), (100, 27125), (124, 21875), (125, 21700), (140, 19375), (155, 17500), (175, 15500), (217, 12500), (250, 10850), (310, 8750), (350, 7750), (434, 6250), (500, 5425), (620, 4375), (625, 4340), (700, 3875), (775, 3500), (868, 3125), (875, 3100), (1085, 2500), (1250, 2170), (1550, 1750)]