20709900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23011}}^1$

素因数の和:23031

約数の個数: 54

約数和(自身を含む): 64916852

約数和(自身を除く): 44206952

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 23011, 46022, 69033, 92044, 115055, 138066, 207099, 230110, 276132, 345165, 414198, 460220, 575275, 690330, 828396, 1035495, 1150550, 1380660, 1725825, 2070990, 2301100, 3451650, 4141980, 5177475, 6903300, 10354950, 20709900]

約数ペア:

[(1, 20709900), (2, 10354950), (3, 6903300), (4, 5177475), (5, 4141980), (6, 3451650), (9, 2301100), (10, 2070990), (12, 1725825), (15, 1380660), (18, 1150550), (20, 1035495), (25, 828396), (30, 690330), (36, 575275), (45, 460220), (50, 414198), (60, 345165), (75, 276132), (90, 230110), (100, 207099), (150, 138066), (180, 115055), (225, 92044), (300, 69033), (450, 46022), (900, 23011)]