19788728

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1289}}^1$

素因数の和:1415

約数の個数: 32

約数和(自身を含む): 39474000

約数和(自身を除く): 19685272

約数列:

[1, 2, 4, 8, 19, 38, 76, 101, 152, 202, 404, 808, 1289, 1919, 2578, 3838, 5156, 7676, 10312, 15352, 24491, 48982, 97964, 130189, 195928, 260378, 520756, 1041512, 2473591, 4947182, 9894364, 19788728]

約数ペア:

[(1, 19788728), (2, 9894364), (4, 4947182), (8, 2473591), (19, 1041512), (38, 520756), (76, 260378), (101, 195928), (152, 130189), (202, 97964), (404, 48982), (808, 24491), (1289, 15352), (1919, 10312), (2578, 7676), (3838, 5156)]