81137968

素因数分解:

$2^4\times {\mathrm{617}}^1\times {\mathrm{8219}}^1$

素因数の和:8844

約数の個数: 20

約数和(自身を含む): 157478760

約数和(自身を除く): 76340792

約数列:

[1, 2, 4, 8, 16, 617, 1234, 2468, 4936, 8219, 9872, 16438, 32876, 65752, 131504, 5071123, 10142246, 20284492, 40568984, 81137968]

約数ペア:

[(1, 81137968), (2, 40568984), (4, 20284492), (8, 10142246), (16, 5071123), (617, 131504), (1234, 65752), (2468, 32876), (4936, 16438), (8219, 9872)]