81511830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{905687}}^1$

素因数の和:905700

約数の個数: 24

約数和(自身を含む): 211930992

約数和(自身を除く): 130419162

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 905687, 1811374, 2717061, 4528435, 5434122, 8151183, 9056870, 13585305, 16302366, 27170610, 40755915, 81511830]

約数ペア:

[(1, 81511830), (2, 40755915), (3, 27170610), (5, 16302366), (6, 13585305), (9, 9056870), (10, 8151183), (15, 5434122), (18, 4528435), (30, 2717061), (45, 1811374), (90, 905687)]