81138080

素因数分解:

$2^5\times 5^1\times {\mathrm{507113}}^1$

素因数の和:507128

約数の個数: 24

約数和(自身を含む): 191689092

約数和(自身を除く): 110551012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 507113, 1014226, 2028452, 2535565, 4056904, 5071130, 8113808, 10142260, 16227616, 20284520, 40569040, 81138080]

約数ペア:

[(1, 81138080), (2, 40569040), (4, 20284520), (5, 16227616), (8, 10142260), (10, 8113808), (16, 5071130), (20, 4056904), (32, 2535565), (40, 2028452), (80, 1014226), (160, 507113)]