71481680

素因数分解:

$2^4\times 5^1\times {\mathrm{893521}}^1$

素因数の和:893534

約数の個数: 20

約数和(自身を含む): 166195092

約数和(自身を除く): 94713412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 893521, 1787042, 3574084, 4467605, 7148168, 8935210, 14296336, 17870420, 35740840, 71481680]

約数ペア:

[(1, 71481680), (2, 35740840), (4, 17870420), (5, 14296336), (8, 8935210), (10, 7148168), (16, 4467605), (20, 3574084), (40, 1787042), (80, 893521)]