71439580

素因数分解:

$2^2\times 5^1\times {\mathrm{1879}}^1\times {\mathrm{1901}}^1$

素因数の和:3789

約数の個数: 24

約数和(自身を含む): 150181920

約数和(自身を除く): 78742340

約数列:

[1, 2, 4, 5, 10, 20, 1879, 1901, 3758, 3802, 7516, 7604, 9395, 9505, 18790, 19010, 37580, 38020, 3571979, 7143958, 14287916, 17859895, 35719790, 71439580]

約数ペア:

[(1, 71439580), (2, 35719790), (4, 17859895), (5, 14287916), (10, 7143958), (20, 3571979), (1879, 38020), (1901, 37580), (3758, 19010), (3802, 18790), (7516, 9505), (7604, 9395)]