19768480

素因数分解:

$2^5\times 5^1\times {\mathrm{123553}}^1$

素因数の和:123568

約数の個数: 24

約数和(自身を含む): 46703412

約数和(自身を除く): 26934932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123553, 247106, 494212, 617765, 988424, 1235530, 1976848, 2471060, 3953696, 4942120, 9884240, 19768480]

約数ペア:

[(1, 19768480), (2, 9884240), (4, 4942120), (5, 3953696), (8, 2471060), (10, 1976848), (16, 1235530), (20, 988424), (32, 617765), (40, 494212), (80, 247106), (160, 123553)]