81613060

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{8017}}^1$

素因数の和:8535

約数の個数: 24

約数和(自身を含む): 171745560

約数和(自身を除く): 90132500

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 8017, 10180, 16034, 32068, 40085, 80170, 160340, 4080653, 8161306, 16322612, 20403265, 40806530, 81613060]

約数ペア:

[(1, 81613060), (2, 40806530), (4, 20403265), (5, 16322612), (10, 8161306), (20, 4080653), (509, 160340), (1018, 80170), (2036, 40085), (2545, 32068), (5090, 16034), (8017, 10180)]