21605400

素因数分解:

$2^3\times 3^3\times 5^2\times {\mathrm{4001}}^1$

素因数の和:4026

約数の個数: 96

約数和(自身を含む): 74437200

約数和(自身を除く): 52831800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 27, 30, 36, 40, 45, 50, 54, 60, 72, 75, 90, 100, 108, 120, 135, 150, 180, 200, 216, 225, 270, 300, 360, 450, 540, 600, 675, 900, 1080, 1350, 1800, 2700, 4001, 5400, 8002, 12003, 16004, 20005, 24006, 32008, 36009, 40010, 48012, 60015, 72018, 80020, 96024, 100025, 108027, 120030, 144036, 160040, 180045, 200050, 216054, 240060, 288072, 300075, 360090, 400100, 432108, 480120, 540135, 600150, 720180, 800200, 864216, 900225, 1080270, 1200300, 1440360, 1800450, 2160540, 2400600, 2700675, 3600900, 4321080, 5401350, 7201800, 10802700, 21605400]

約数ペア:

[(1, 21605400), (2, 10802700), (3, 7201800), (4, 5401350), (5, 4321080), (6, 3600900), (8, 2700675), (9, 2400600), (10, 2160540), (12, 1800450), (15, 1440360), (18, 1200300), (20, 1080270), (24, 900225), (25, 864216), (27, 800200), (30, 720180), (36, 600150), (40, 540135), (45, 480120), (50, 432108), (54, 400100), (60, 360090), (72, 300075), (75, 288072), (90, 240060), (100, 216054), (108, 200050), (120, 180045), (135, 160040), (150, 144036), (180, 120030), (200, 108027), (216, 100025), (225, 96024), (270, 80020), (300, 72018), (360, 60015), (450, 48012), (540, 40010), (600, 36009), (675, 32008), (900, 24006), (1080, 20005), (1350, 16004), (1800, 12003), (2700, 8002), (4001, 5400)]