128028620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{3109}}^1$

素因数の和:3218

約数の個数: 48

約数和(自身を含む): 282139200

約数和(自身を除く): 154110580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 580, 710, 1420, 2059, 3109, 4118, 6218, 8236, 10295, 12436, 15545, 20590, 31090, 41180, 62180, 90161, 180322, 220739, 360644, 441478, 450805, 882956, 901610, 1103695, 1803220, 2207390, 4414780, 6401431, 12802862, 25605724, 32007155, 64014310, 128028620]

約数ペア:

[(1, 128028620), (2, 64014310), (4, 32007155), (5, 25605724), (10, 12802862), (20, 6401431), (29, 4414780), (58, 2207390), (71, 1803220), (116, 1103695), (142, 901610), (145, 882956), (284, 450805), (290, 441478), (355, 360644), (580, 220739), (710, 180322), (1420, 90161), (2059, 62180), (3109, 41180), (4118, 31090), (6218, 20590), (8236, 15545), (10295, 12436)]