30012500

素因数分解:

$2^2\times 5^5\times 7^4$

素因数の和:57

約数の個数: 90

約数和(自身を含む): 76584942

約数和(自身を除く): 46572442

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, 2401, 2450, 2500, 3125, 3430, 3500, 4375, 4802, 4900, 6125, 6250, 6860, 8575, 8750, 9604, 12005, 12250, 12500, 17150, 17500, 21875, 24010, 24500, 30625, 34300, 42875, 43750, 48020, 60025, 61250, 85750, 87500, 120050, 122500, 153125, 171500, 214375, 240100, 300125, 306250, 428750, 600250, 612500, 857500, 1071875, 1200500, 1500625, 2143750, 3001250, 4287500, 6002500, 7503125, 15006250, 30012500]

約数ペア:

[(1, 30012500), (2, 15006250), (4, 7503125), (5, 6002500), (7, 4287500), (10, 3001250), (14, 2143750), (20, 1500625), (25, 1200500), (28, 1071875), (35, 857500), (49, 612500), (50, 600250), (70, 428750), (98, 306250), (100, 300125), (125, 240100), (140, 214375), (175, 171500), (196, 153125), (245, 122500), (250, 120050), (343, 87500), (350, 85750), (490, 61250), (500, 60025), (625, 48020), (686, 43750), (700, 42875), (875, 34300), (980, 30625), (1225, 24500), (1250, 24010), (1372, 21875), (1715, 17500), (1750, 17150), (2401, 12500), (2450, 12250), (2500, 12005), (3125, 9604), (3430, 8750), (3500, 8575), (4375, 6860), (4802, 6250), (4900, 6125)]