78902260

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{20441}}^1$

素因数の和:20643

約数の個数: 24

約数和(自身を含む): 166561416

約数和(自身を除く): 87659156

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 20441, 40882, 81764, 102205, 204410, 408820, 3945113, 7890226, 15780452, 19725565, 39451130, 78902260]

約数ペア:

[(1, 78902260), (2, 39451130), (4, 19725565), (5, 15780452), (10, 7890226), (20, 3945113), (193, 408820), (386, 204410), (772, 102205), (965, 81764), (1930, 40882), (3860, 20441)]