640782

素因数分解:

$2^1\times 3^2\times {\mathrm{97}}^1\times {\mathrm{367}}^1$

素因数の和:472

約数の個数: 24

約数和(自身を含む): 1406496

約数和(自身を除く): 765714

約数列:

[1, 2, 3, 6, 9, 18, 97, 194, 291, 367, 582, 734, 873, 1101, 1746, 2202, 3303, 6606, 35599, 71198, 106797, 213594, 320391, 640782]

約数ペア:

[(1, 640782), (2, 320391), (3, 213594), (6, 106797), (9, 71198), (18, 35599), (97, 6606), (194, 3303), (291, 2202), (367, 1746), (582, 1101), (734, 873)]