15801680

素因数分解:

$2^4\times 5^1\times {\mathrm{197521}}^1$

素因数の和:197534

約数の個数: 20

約数和(自身を含む): 36739092

約数和(自身を除く): 20937412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197521, 395042, 790084, 987605, 1580168, 1975210, 3160336, 3950420, 7900840, 15801680]

約数ペア:

[(1, 15801680), (2, 7900840), (4, 3950420), (5, 3160336), (8, 1975210), (10, 1580168), (16, 987605), (20, 790084), (40, 395042), (80, 197521)]