128440815

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1\times {\mathrm{353}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 208797696

約数和(自身を除く): 80356881

約数列:

[1, 3, 5, 15, 127, 191, 353, 381, 573, 635, 955, 1059, 1765, 1905, 2865, 5295, 24257, 44831, 67423, 72771, 121285, 134493, 202269, 224155, 337115, 363855, 672465, 1011345, 8562721, 25688163, 42813605, 128440815]

約数ペア:

[(1, 128440815), (3, 42813605), (5, 25688163), (15, 8562721), (127, 1011345), (191, 672465), (353, 363855), (381, 337115), (573, 224155), (635, 202269), (955, 134493), (1059, 121285), (1765, 72771), (1905, 67423), (2865, 44831), (5295, 24257)]