4287500

素因数分解:

$2^2\times 5^5\times 7^3$

素因数の和:50

約数の個数: 72

約数和(自身を含む): 10936800

約数和(自身を除く): 6649300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 245, 250, 343, 350, 490, 500, 625, 686, 700, 875, 980, 1225, 1250, 1372, 1715, 1750, 2450, 2500, 3125, 3430, 3500, 4375, 4900, 6125, 6250, 6860, 8575, 8750, 12250, 12500, 17150, 17500, 21875, 24500, 30625, 34300, 42875, 43750, 61250, 85750, 87500, 122500, 153125, 171500, 214375, 306250, 428750, 612500, 857500, 1071875, 2143750, 4287500]

約数ペア:

[(1, 4287500), (2, 2143750), (4, 1071875), (5, 857500), (7, 612500), (10, 428750), (14, 306250), (20, 214375), (25, 171500), (28, 153125), (35, 122500), (49, 87500), (50, 85750), (70, 61250), (98, 43750), (100, 42875), (125, 34300), (140, 30625), (175, 24500), (196, 21875), (245, 17500), (250, 17150), (343, 12500), (350, 12250), (490, 8750), (500, 8575), (625, 6860), (686, 6250), (700, 6125), (875, 4900), (980, 4375), (1225, 3500), (1250, 3430), (1372, 3125), (1715, 2500), (1750, 2450)]