20179897856

素因数分解:

$2^9\times {\mathrm{241}}^1\times {\mathrm{163543}}^1$

素因数の和:163802

約数の個数: 40

約数和(自身を含む): 40487933904

約数和(自身を除く): 20308036048

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 241, 256, 482, 512, 964, 1928, 3856, 7712, 15424, 30848, 61696, 123392, 163543, 327086, 654172, 1308344, 2616688, 5233376, 10466752, 20933504, 39413863, 41867008, 78827726, 83734016, 157655452, 315310904, 630621808, 1261243616, 2522487232, 5044974464, 10089948928, 20179897856]

約数ペア:

[(1, 20179897856), (2, 10089948928), (4, 5044974464), (8, 2522487232), (16, 1261243616), (32, 630621808), (64, 315310904), (128, 157655452), (241, 83734016), (256, 78827726), (482, 41867008), (512, 39413863), (964, 20933504), (1928, 10466752), (3856, 5233376), (7712, 2616688), (15424, 1308344), (30848, 654172), (61696, 327086), (123392, 163543)]