266808220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1905773}}^1$

素因数の和:1905789

約数の個数: 24

約数和(自身を含む): 640340064

約数和(自身を除く): 373531844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1905773, 3811546, 7623092, 9528865, 13340411, 19057730, 26680822, 38115460, 53361644, 66702055, 133404110, 266808220]

約数ペア:

[(1, 266808220), (2, 133404110), (4, 66702055), (5, 53361644), (7, 38115460), (10, 26680822), (14, 19057730), (20, 13340411), (28, 9528865), (35, 7623092), (70, 3811546), (140, 1905773)]