208609845

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{2081}}^1$

素因数の和:2293

約数の個数: 32

約数和(自身を含む): 344179584

約数和(自身を除く): 135569739

約数列:

[1, 3, 5, 15, 41, 123, 163, 205, 489, 615, 815, 2081, 2445, 6243, 6683, 10405, 20049, 31215, 33415, 85321, 100245, 255963, 339203, 426605, 1017609, 1279815, 1696015, 5088045, 13907323, 41721969, 69536615, 208609845]

約数ペア:

[(1, 208609845), (3, 69536615), (5, 41721969), (15, 13907323), (41, 5088045), (123, 1696015), (163, 1279815), (205, 1017609), (489, 426605), (615, 339203), (815, 255963), (2081, 100245), (2445, 85321), (6243, 33415), (6683, 31215), (10405, 20049)]