65012840

素因数分解:

$2^3\times 5^1\times {\mathrm{1625321}}^1$

素因数の和:1625332

約数の個数: 16

約数和(自身を含む): 146278980

約数和(自身を除く): 81266140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1625321, 3250642, 6501284, 8126605, 13002568, 16253210, 32506420, 65012840]

約数ペア:

[(1, 65012840), (2, 32506420), (4, 16253210), (5, 13002568), (8, 8126605), (10, 6501284), (20, 3250642), (40, 1625321)]