2537500

素因数分解:

$2^2\times 5^5\times 7^1\times {\mathrm{29}}^1$

素因数の和:65

約数の個数: 72

約数和(自身を含む): 6562080

約数和(自身を除く): 4024580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 100, 116, 125, 140, 145, 175, 203, 250, 290, 350, 406, 500, 580, 625, 700, 725, 812, 875, 1015, 1250, 1450, 1750, 2030, 2500, 2900, 3125, 3500, 3625, 4060, 4375, 5075, 6250, 7250, 8750, 10150, 12500, 14500, 17500, 18125, 20300, 21875, 25375, 36250, 43750, 50750, 72500, 87500, 90625, 101500, 126875, 181250, 253750, 362500, 507500, 634375, 1268750, 2537500]

約数ペア:

[(1, 2537500), (2, 1268750), (4, 634375), (5, 507500), (7, 362500), (10, 253750), (14, 181250), (20, 126875), (25, 101500), (28, 90625), (29, 87500), (35, 72500), (50, 50750), (58, 43750), (70, 36250), (100, 25375), (116, 21875), (125, 20300), (140, 18125), (145, 17500), (175, 14500), (203, 12500), (250, 10150), (290, 8750), (350, 7250), (406, 6250), (500, 5075), (580, 4375), (625, 4060), (700, 3625), (725, 3500), (812, 3125), (875, 2900), (1015, 2500), (1250, 2030), (1450, 1750)]