18375000

素因数分解:

$2^3\times 3^1\times 5^6\times 7^2$

素因数の和:53

約数の個数: 168

約数和(自身を含む): 66796020

約数和(自身を除く): 48421020

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 49, 50, 56, 60, 70, 75, 84, 98, 100, 105, 120, 125, 140, 147, 150, 168, 175, 196, 200, 210, 245, 250, 280, 294, 300, 350, 375, 392, 420, 490, 500, 525, 588, 600, 625, 700, 735, 750, 840, 875, 980, 1000, 1050, 1176, 1225, 1250, 1400, 1470, 1500, 1750, 1875, 1960, 2100, 2450, 2500, 2625, 2940, 3000, 3125, 3500, 3675, 3750, 4200, 4375, 4900, 5000, 5250, 5880, 6125, 6250, 7000, 7350, 7500, 8750, 9375, 9800, 10500, 12250, 12500, 13125, 14700, 15000, 15625, 17500, 18375, 18750, 21000, 21875, 24500, 25000, 26250, 29400, 30625, 31250, 35000, 36750, 37500, 43750, 46875, 49000, 52500, 61250, 62500, 65625, 73500, 75000, 87500, 91875, 93750, 105000, 109375, 122500, 125000, 131250, 147000, 153125, 175000, 183750, 187500, 218750, 245000, 262500, 306250, 328125, 367500, 375000, 437500, 459375, 525000, 612500, 656250, 735000, 765625, 875000, 918750, 1225000, 1312500, 1531250, 1837500, 2296875, 2625000, 3062500, 3675000, 4593750, 6125000, 9187500, 18375000]

約数ペア:

[(1, 18375000), (2, 9187500), (3, 6125000), (4, 4593750), (5, 3675000), (6, 3062500), (7, 2625000), (8, 2296875), (10, 1837500), (12, 1531250), (14, 1312500), (15, 1225000), (20, 918750), (21, 875000), (24, 765625), (25, 735000), (28, 656250), (30, 612500), (35, 525000), (40, 459375), (42, 437500), (49, 375000), (50, 367500), (56, 328125), (60, 306250), (70, 262500), (75, 245000), (84, 218750), (98, 187500), (100, 183750), (105, 175000), (120, 153125), (125, 147000), (140, 131250), (147, 125000), (150, 122500), (168, 109375), (175, 105000), (196, 93750), (200, 91875), (210, 87500), (245, 75000), (250, 73500), (280, 65625), (294, 62500), (300, 61250), (350, 52500), (375, 49000), (392, 46875), (420, 43750), (490, 37500), (500, 36750), (525, 35000), (588, 31250), (600, 30625), (625, 29400), (700, 26250), (735, 25000), (750, 24500), (840, 21875), (875, 21000), (980, 18750), (1000, 18375), (1050, 17500), (1176, 15625), (1225, 15000), (1250, 14700), (1400, 13125), (1470, 12500), (1500, 12250), (1750, 10500), (1875, 9800), (1960, 9375), (2100, 8750), (2450, 7500), (2500, 7350), (2625, 7000), (2940, 6250), (3000, 6125), (3125, 5880), (3500, 5250), (3675, 5000), (3750, 4900), (4200, 4375)]