71130440

素因数分解:

$2^3\times 5^1\times {\mathrm{1778261}}^1$

素因数の和:1778272

約数の個数: 16

約数和(自身を含む): 160043580

約数和(自身を除く): 88913140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1778261, 3556522, 7113044, 8891305, 14226088, 17782610, 35565220, 71130440]

約数ペア:

[(1, 71130440), (2, 35565220), (4, 17782610), (5, 14226088), (8, 8891305), (10, 7113044), (20, 3556522), (40, 1778261)]