90915380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239251}}^1$

素因数の和:239279

約数の個数: 24

約数和(自身を含む): 200971680

約数和(自身を除く): 110056300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 239251, 478502, 957004, 1196255, 2392510, 4545769, 4785020, 9091538, 18183076, 22728845, 45457690, 90915380]

約数ペア:

[(1, 90915380), (2, 45457690), (4, 22728845), (5, 18183076), (10, 9091538), (19, 4785020), (20, 4545769), (38, 2392510), (76, 1196255), (95, 957004), (190, 478502), (380, 239251)]