239201680

素因数分解:

$2^4\times 5^1\times {\mathrm{2990021}}^1$

素因数の和:2990034

約数の個数: 20

約数和(自身を含む): 556144092

約数和(自身を除く): 316942412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2990021, 5980042, 11960084, 14950105, 23920168, 29900210, 47840336, 59800420, 119600840, 239201680]

約数ペア:

[(1, 239201680), (2, 119600840), (4, 59800420), (5, 47840336), (8, 29900210), (10, 23920168), (16, 14950105), (20, 11960084), (40, 5980042), (80, 2990021)]