72180000

素因数分解:

$2^5\times 3^2\times 5^4\times {\mathrm{401}}^1$

素因数の和:437

約数の個数: 180

約数和(自身を含む): 257134878

約数和(自身を除く): 184954878

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 96, 100, 120, 125, 144, 150, 160, 180, 200, 225, 240, 250, 288, 300, 360, 375, 400, 401, 450, 480, 500, 600, 625, 720, 750, 800, 802, 900, 1000, 1125, 1200, 1203, 1250, 1440, 1500, 1604, 1800, 1875, 2000, 2005, 2250, 2400, 2406, 2500, 3000, 3208, 3600, 3609, 3750, 4000, 4010, 4500, 4812, 5000, 5625, 6000, 6015, 6416, 7200, 7218, 7500, 8020, 9000, 9624, 10000, 10025, 11250, 12000, 12030, 12832, 14436, 15000, 16040, 18000, 18045, 19248, 20000, 20050, 22500, 24060, 28872, 30000, 30075, 32080, 36000, 36090, 38496, 40100, 45000, 48120, 50125, 57744, 60000, 60150, 64160, 72180, 80200, 90000, 90225, 96240, 100250, 115488, 120300, 144360, 150375, 160400, 180000, 180450, 192480, 200500, 240600, 250625, 288720, 300750, 320800, 360900, 401000, 451125, 481200, 501250, 577440, 601500, 721800, 751875, 802000, 902250, 962400, 1002500, 1203000, 1443600, 1503750, 1604000, 1804500, 2005000, 2255625, 2406000, 2887200, 3007500, 3609000, 4010000, 4511250, 4812000, 6015000, 7218000, 8020000, 9022500, 12030000, 14436000, 18045000, 24060000, 36090000, 72180000]

約数ペア:

[(1, 72180000), (2, 36090000), (3, 24060000), (4, 18045000), (5, 14436000), (6, 12030000), (8, 9022500), (9, 8020000), (10, 7218000), (12, 6015000), (15, 4812000), (16, 4511250), (18, 4010000), (20, 3609000), (24, 3007500), (25, 2887200), (30, 2406000), (32, 2255625), (36, 2005000), (40, 1804500), (45, 1604000), (48, 1503750), (50, 1443600), (60, 1203000), (72, 1002500), (75, 962400), (80, 902250), (90, 802000), (96, 751875), (100, 721800), (120, 601500), (125, 577440), (144, 501250), (150, 481200), (160, 451125), (180, 401000), (200, 360900), (225, 320800), (240, 300750), (250, 288720), (288, 250625), (300, 240600), (360, 200500), (375, 192480), (400, 180450), (401, 180000), (450, 160400), (480, 150375), (500, 144360), (600, 120300), (625, 115488), (720, 100250), (750, 96240), (800, 90225), (802, 90000), (900, 80200), (1000, 72180), (1125, 64160), (1200, 60150), (1203, 60000), (1250, 57744), (1440, 50125), (1500, 48120), (1604, 45000), (1800, 40100), (1875, 38496), (2000, 36090), (2005, 36000), (2250, 32080), (2400, 30075), (2406, 30000), (2500, 28872), (3000, 24060), (3208, 22500), (3600, 20050), (3609, 20000), (3750, 19248), (4000, 18045), (4010, 18000), (4500, 16040), (4812, 15000), (5000, 14436), (5625, 12832), (6000, 12030), (6015, 12000), (6416, 11250), (7200, 10025), (7218, 10000), (7500, 9624), (8020, 9000)]