2103020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1481}}^1$

素因数の和:1561

約数の個数: 24

約数和(自身を含む): 4481568

約数和(自身を除く): 2378548

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1481, 2962, 5924, 7405, 14810, 29620, 105151, 210302, 420604, 525755, 1051510, 2103020]

約数ペア:

[(1, 2103020), (2, 1051510), (4, 525755), (5, 420604), (10, 210302), (20, 105151), (71, 29620), (142, 14810), (284, 7405), (355, 5924), (710, 2962), (1420, 1481)]