28005000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{1867}}^1$

素因数の和:1896

約数の個数: 80

約数和(自身を含む): 87534480

約数和(自身を除く): 59529480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 625, 750, 1000, 1250, 1500, 1867, 1875, 2500, 3000, 3734, 3750, 5000, 5601, 7468, 7500, 9335, 11202, 14936, 15000, 18670, 22404, 28005, 37340, 44808, 46675, 56010, 74680, 93350, 112020, 140025, 186700, 224040, 233375, 280050, 373400, 466750, 560100, 700125, 933500, 1120200, 1166875, 1400250, 1867000, 2333750, 2800500, 3500625, 4667500, 5601000, 7001250, 9335000, 14002500, 28005000]

約数ペア:

[(1, 28005000), (2, 14002500), (3, 9335000), (4, 7001250), (5, 5601000), (6, 4667500), (8, 3500625), (10, 2800500), (12, 2333750), (15, 1867000), (20, 1400250), (24, 1166875), (25, 1120200), (30, 933500), (40, 700125), (50, 560100), (60, 466750), (75, 373400), (100, 280050), (120, 233375), (125, 224040), (150, 186700), (200, 140025), (250, 112020), (300, 93350), (375, 74680), (500, 56010), (600, 46675), (625, 44808), (750, 37340), (1000, 28005), (1250, 22404), (1500, 18670), (1867, 15000), (1875, 14936), (2500, 11202), (3000, 9335), (3734, 7500), (3750, 7468), (5000, 5601)]