1293521360

素因数分解:

$2^4\times 5^1\times {\mathrm{16169017}}^1$

素因数の和:16169030

約数の個数: 20

約数和(自身を含む): 3007437348

約数和(自身を除く): 1713915988

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16169017, 32338034, 64676068, 80845085, 129352136, 161690170, 258704272, 323380340, 646760680, 1293521360]

約数ペア:

[(1, 1293521360), (2, 646760680), (4, 323380340), (5, 258704272), (8, 161690170), (10, 129352136), (16, 80845085), (20, 64676068), (40, 32338034), (80, 16169017)]