20315860

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1153}}^1$

素因数の和:2043

約数の個数: 24

約数和(自身を含む): 42748776

約数和(自身を除く): 22432916

約数列:

[1, 2, 4, 5, 10, 20, 881, 1153, 1762, 2306, 3524, 4405, 4612, 5765, 8810, 11530, 17620, 23060, 1015793, 2031586, 4063172, 5078965, 10157930, 20315860]

約数ペア:

[(1, 20315860), (2, 10157930), (4, 5078965), (5, 4063172), (10, 2031586), (20, 1015793), (881, 23060), (1153, 17620), (1762, 11530), (2306, 8810), (3524, 5765), (4405, 4612)]