157025020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{110581}}^1$

素因数の和:110661

約数の個数: 24

約数和(自身を含む): 334399968

約数和(自身を除く): 177374948

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 110581, 221162, 442324, 552905, 1105810, 2211620, 7851251, 15702502, 31405004, 39256255, 78512510, 157025020]

約数ペア:

[(1, 157025020), (2, 78512510), (4, 39256255), (5, 31405004), (10, 15702502), (20, 7851251), (71, 2211620), (142, 1105810), (284, 552905), (355, 442324), (710, 221162), (1420, 110581)]