20451815

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{3001}}^1$

素因数の和:3082

約数の個数: 16

約数和(自身を含む): 25937280

約数和(自身を除く): 5485465

約数列:

[1, 5, 29, 47, 145, 235, 1363, 3001, 6815, 15005, 87029, 141047, 435145, 705235, 4090363, 20451815]

約数ペア:

[(1, 20451815), (5, 4090363), (29, 705235), (47, 435145), (145, 141047), (235, 87029), (1363, 15005), (3001, 6815)]