66820240

素因数分解:

$2^4\times 5^1\times {\mathrm{835253}}^1$

素因数の和:835266

約数の個数: 20

約数和(自身を含む): 155357244

約数和(自身を除く): 88537004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 835253, 1670506, 3341012, 4176265, 6682024, 8352530, 13364048, 16705060, 33410120, 66820240]

約数ペア:

[(1, 66820240), (2, 33410120), (4, 16705060), (5, 13364048), (8, 8352530), (10, 6682024), (16, 4176265), (20, 3341012), (40, 1670506), (80, 835253)]