19828080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27539}}^1$

素因数の和:27558

約数の個数: 60

約数和(自身を含む): 66591720

約数和(自身を除く): 46763640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27539, 55078, 82617, 110156, 137695, 165234, 220312, 247851, 275390, 330468, 413085, 440624, 495702, 550780, 660936, 826170, 991404, 1101560, 1239255, 1321872, 1652340, 1982808, 2203120, 2478510, 3304680, 3965616, 4957020, 6609360, 9914040, 19828080]

約数ペア:

[(1, 19828080), (2, 9914040), (3, 6609360), (4, 4957020), (5, 3965616), (6, 3304680), (8, 2478510), (9, 2203120), (10, 1982808), (12, 1652340), (15, 1321872), (16, 1239255), (18, 1101560), (20, 991404), (24, 826170), (30, 660936), (36, 550780), (40, 495702), (45, 440624), (48, 413085), (60, 330468), (72, 275390), (80, 247851), (90, 220312), (120, 165234), (144, 137695), (180, 110156), (240, 82617), (360, 55078), (720, 27539)]