90778805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{32479}}^1$

素因数の和:32540

約数の個数: 16

約数和(自身を含む): 120046080

約数和(自身を除く): 29267275

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 32479, 162395, 422227, 1396597, 2111135, 6982985, 18155761, 90778805]

約数ペア:

[(1, 90778805), (5, 18155761), (13, 6982985), (43, 2111135), (65, 1396597), (215, 422227), (559, 162395), (2795, 32479)]