640497678

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{6279389}}^1$

素因数の和:6279411

約数の個数: 16

約数和(自身を含む): 1356348240

約数和(自身を除く): 715850562

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 6279389, 12558778, 18838167, 37676334, 106749613, 213499226, 320248839, 640497678]

約数ペア:

[(1, 640497678), (2, 320248839), (3, 213499226), (6, 106749613), (17, 37676334), (34, 18838167), (51, 12558778), (102, 6279389)]