180045000

素因数分解:

$2^3\times 3^2\times 5^4\times {\mathrm{4001}}^1$

素因数の和:4033

約数の個数: 120

約数和(自身を含む): 609484590

約数和(自身を除く): 429439590

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 125, 150, 180, 200, 225, 250, 300, 360, 375, 450, 500, 600, 625, 750, 900, 1000, 1125, 1250, 1500, 1800, 1875, 2250, 2500, 3000, 3750, 4001, 4500, 5000, 5625, 7500, 8002, 9000, 11250, 12003, 15000, 16004, 20005, 22500, 24006, 32008, 36009, 40010, 45000, 48012, 60015, 72018, 80020, 96024, 100025, 120030, 144036, 160040, 180045, 200050, 240060, 288072, 300075, 360090, 400100, 480120, 500125, 600150, 720180, 800200, 900225, 1000250, 1200300, 1440360, 1500375, 1800450, 2000500, 2400600, 2500625, 3000750, 3600900, 4001000, 4501125, 5001250, 6001500, 7201800, 7501875, 9002250, 10002500, 12003000, 15003750, 18004500, 20005000, 22505625, 30007500, 36009000, 45011250, 60015000, 90022500, 180045000]

約数ペア:

[(1, 180045000), (2, 90022500), (3, 60015000), (4, 45011250), (5, 36009000), (6, 30007500), (8, 22505625), (9, 20005000), (10, 18004500), (12, 15003750), (15, 12003000), (18, 10002500), (20, 9002250), (24, 7501875), (25, 7201800), (30, 6001500), (36, 5001250), (40, 4501125), (45, 4001000), (50, 3600900), (60, 3000750), (72, 2500625), (75, 2400600), (90, 2000500), (100, 1800450), (120, 1500375), (125, 1440360), (150, 1200300), (180, 1000250), (200, 900225), (225, 800200), (250, 720180), (300, 600150), (360, 500125), (375, 480120), (450, 400100), (500, 360090), (600, 300075), (625, 288072), (750, 240060), (900, 200050), (1000, 180045), (1125, 160040), (1250, 144036), (1500, 120030), (1800, 100025), (1875, 96024), (2250, 80020), (2500, 72018), (3000, 60015), (3750, 48012), (4001, 45000), (4500, 40010), (5000, 36009), (5625, 32008), (7500, 24006), (8002, 22500), (9000, 20005), (11250, 16004), (12003, 15000)]