20764565

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{1279}}^1$

素因数の和:1492

約数の個数: 16

約数和(自身を含む): 26542080

約数和(自身を除く): 5777515

約数列:

[1, 5, 17, 85, 191, 955, 1279, 3247, 6395, 16235, 21743, 108715, 244289, 1221445, 4152913, 20764565]

約数ペア:

[(1, 20764565), (5, 4152913), (17, 1221445), (85, 244289), (191, 108715), (955, 21743), (1279, 16235), (3247, 6395)]