9740840

素因数分解:

$2^3\times 5^1\times {\mathrm{243521}}^1$

素因数の和:243532

約数の個数: 16

約数和(自身を含む): 21916980

約数和(自身を除く): 12176140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 243521, 487042, 974084, 1217605, 1948168, 2435210, 4870420, 9740840]

約数ペア:

[(1, 9740840), (2, 4870420), (4, 2435210), (5, 1948168), (8, 1217605), (10, 974084), (20, 487042), (40, 243521)]