81305540

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{68903}}^1$

素因数の和:68971

約数の個数: 24

約数和(自身を含む): 173638080

約数和(自身を除く): 92332540

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 68903, 137806, 275612, 344515, 689030, 1378060, 4065277, 8130554, 16261108, 20326385, 40652770, 81305540]

約数ペア:

[(1, 81305540), (2, 40652770), (4, 20326385), (5, 16261108), (10, 8130554), (20, 4065277), (59, 1378060), (118, 689030), (236, 344515), (295, 275612), (590, 137806), (1180, 68903)]