80158480

素因数分解:

$2^4\times 5^1\times {\mathrm{1001981}}^1$

素因数の和:1001994

約数の個数: 20

約数和(自身を含む): 186368652

約数和(自身を除く): 106210172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1001981, 2003962, 4007924, 5009905, 8015848, 10019810, 16031696, 20039620, 40079240, 80158480]

約数ペア:

[(1, 80158480), (2, 40079240), (4, 20039620), (5, 16031696), (8, 10019810), (10, 8015848), (16, 5009905), (20, 4007924), (40, 2003962), (80, 1001981)]