81643645

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{1979}}^1$

素因数の和:2244

約数の個数: 16

約数和(自身を含む): 101122560

約数和(自身を除く): 19478915

約数列:

[1, 5, 37, 185, 223, 1115, 1979, 8251, 9895, 41255, 73223, 366115, 441317, 2206585, 16328729, 81643645]

約数ペア:

[(1, 81643645), (5, 16328729), (37, 2206585), (185, 441317), (223, 366115), (1115, 73223), (1979, 41255), (8251, 9895)]