138815530

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{40471}}^1$

素因数の和:40499

約数の個数: 32

約数和(自身を含む): 291398400

約数和(自身を除く): 152582870

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 40471, 80942, 202355, 283297, 404710, 566594, 1416485, 1983079, 2832970, 3966158, 9915395, 13881553, 19830790, 27763106, 69407765, 138815530]

約数ペア:

[(1, 138815530), (2, 69407765), (5, 27763106), (7, 19830790), (10, 13881553), (14, 9915395), (35, 3966158), (49, 2832970), (70, 1983079), (98, 1416485), (245, 566594), (343, 404710), (490, 283297), (686, 202355), (1715, 80942), (3430, 40471)]