81490495

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{631}}^1\times {\mathrm{1123}}^1$

素因数の和:1782

約数の個数: 16

約数和(自身を含む): 102292992

約数和(自身を除く): 20802497

約数列:

[1, 5, 23, 115, 631, 1123, 3155, 5615, 14513, 25829, 72565, 129145, 708613, 3543065, 16298099, 81490495]

約数ペア:

[(1, 81490495), (5, 16298099), (23, 3543065), (115, 708613), (631, 129145), (1123, 72565), (3155, 25829), (5615, 14513)]