641330332

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{138337}}^1$

素因数の和:138421

約数の個数: 24

約数和(自身を含む): 1200773840

約数和(自身を除く): 559443508

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4636, 138337, 276674, 553348, 2628403, 5256806, 8438557, 10513612, 16877114, 33754228, 160332583, 320665166, 641330332]

約数ペア:

[(1, 641330332), (2, 320665166), (4, 160332583), (19, 33754228), (38, 16877114), (61, 10513612), (76, 8438557), (122, 5256806), (244, 2628403), (1159, 553348), (2318, 276674), (4636, 138337)]