66217100

素因数分解:

$2^2\times 5^2\times {\mathrm{409}}^1\times {\mathrm{1619}}^1$

素因数の和:2042

約数の個数: 36

約数和(自身を含む): 144131400

約数和(自身を除く): 77914300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 409, 818, 1619, 1636, 2045, 3238, 4090, 6476, 8095, 8180, 10225, 16190, 20450, 32380, 40475, 40900, 80950, 161900, 662171, 1324342, 2648684, 3310855, 6621710, 13243420, 16554275, 33108550, 66217100]

約数ペア:

[(1, 66217100), (2, 33108550), (4, 16554275), (5, 13243420), (10, 6621710), (20, 3310855), (25, 2648684), (50, 1324342), (100, 662171), (409, 161900), (818, 80950), (1619, 40900), (1636, 40475), (2045, 32380), (3238, 20450), (4090, 16190), (6476, 10225), (8095, 8180)]