18007500

素因数分解:

$2^2\times 3^1\times 5^4\times 7^4$

素因数の和:55

約数の個数: 150

約数和(自身を含む): 61252268

約数和(自身を除く): 43244768

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 125, 140, 147, 150, 175, 196, 210, 245, 250, 294, 300, 343, 350, 375, 420, 490, 500, 525, 588, 625, 686, 700, 735, 750, 875, 980, 1029, 1050, 1225, 1250, 1372, 1470, 1500, 1715, 1750, 1875, 2058, 2100, 2401, 2450, 2500, 2625, 2940, 3430, 3500, 3675, 3750, 4116, 4375, 4802, 4900, 5145, 5250, 6125, 6860, 7203, 7350, 7500, 8575, 8750, 9604, 10290, 10500, 12005, 12250, 13125, 14406, 14700, 17150, 17500, 18375, 20580, 24010, 24500, 25725, 26250, 28812, 30625, 34300, 36015, 36750, 42875, 48020, 51450, 52500, 60025, 61250, 72030, 73500, 85750, 91875, 102900, 120050, 122500, 128625, 144060, 171500, 180075, 183750, 214375, 240100, 257250, 300125, 360150, 367500, 428750, 514500, 600250, 643125, 720300, 857500, 900375, 1200500, 1286250, 1500625, 1800750, 2572500, 3001250, 3601500, 4501875, 6002500, 9003750, 18007500]

約数ペア:

[(1, 18007500), (2, 9003750), (3, 6002500), (4, 4501875), (5, 3601500), (6, 3001250), (7, 2572500), (10, 1800750), (12, 1500625), (14, 1286250), (15, 1200500), (20, 900375), (21, 857500), (25, 720300), (28, 643125), (30, 600250), (35, 514500), (42, 428750), (49, 367500), (50, 360150), (60, 300125), (70, 257250), (75, 240100), (84, 214375), (98, 183750), (100, 180075), (105, 171500), (125, 144060), (140, 128625), (147, 122500), (150, 120050), (175, 102900), (196, 91875), (210, 85750), (245, 73500), (250, 72030), (294, 61250), (300, 60025), (343, 52500), (350, 51450), (375, 48020), (420, 42875), (490, 36750), (500, 36015), (525, 34300), (588, 30625), (625, 28812), (686, 26250), (700, 25725), (735, 24500), (750, 24010), (875, 20580), (980, 18375), (1029, 17500), (1050, 17150), (1225, 14700), (1250, 14406), (1372, 13125), (1470, 12250), (1500, 12005), (1715, 10500), (1750, 10290), (1875, 9604), (2058, 8750), (2100, 8575), (2401, 7500), (2450, 7350), (2500, 7203), (2625, 6860), (2940, 6125), (3430, 5250), (3500, 5145), (3675, 4900), (3750, 4802), (4116, 4375)]