20199255680

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1661123}}^1$

素因数の和:1661161

約数の個数: 64

約数和(自身を含む): 50830394400

約数和(自身を除く): 30631138720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 12160, 1661123, 3322246, 6644492, 8305615, 13288984, 16611230, 26577968, 31561337, 33222460, 53155936, 63122674, 66444920, 106311872, 126245348, 132889840, 157806685, 212623744, 252490696, 265779680, 315613370, 504981392, 531559360, 631226740, 1009962784, 1063118720, 1262453480, 2019925568, 2524906960, 4039851136, 5049813920, 10099627840, 20199255680]

約数ペア:

[(1, 20199255680), (2, 10099627840), (4, 5049813920), (5, 4039851136), (8, 2524906960), (10, 2019925568), (16, 1262453480), (19, 1063118720), (20, 1009962784), (32, 631226740), (38, 531559360), (40, 504981392), (64, 315613370), (76, 265779680), (80, 252490696), (95, 212623744), (128, 157806685), (152, 132889840), (160, 126245348), (190, 106311872), (304, 66444920), (320, 63122674), (380, 53155936), (608, 33222460), (640, 31561337), (760, 26577968), (1216, 16611230), (1520, 13288984), (2432, 8305615), (3040, 6644492), (6080, 3322246), (12160, 1661123)]