81115376

素因数分解:

$2^4\times {\mathrm{541}}^1\times {\mathrm{9371}}^1$

素因数の和:9920

約数の個数: 20

約数和(自身を含む): 157468344

約数和(自身を除く): 76352968

約数列:

[1, 2, 4, 8, 16, 541, 1082, 2164, 4328, 8656, 9371, 18742, 37484, 74968, 149936, 5069711, 10139422, 20278844, 40557688, 81115376]

約数ペア:

[(1, 81115376), (2, 40557688), (4, 20278844), (8, 10139422), (16, 5069711), (541, 149936), (1082, 74968), (2164, 37484), (4328, 18742), (8656, 9371)]