128516912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{422753}}^1$

素因数の和:422780

約数の個数: 20

約数和(自身を含む): 262107480

約数和(自身を除く): 133590568

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 422753, 845506, 1691012, 3382024, 6764048, 8032307, 16064614, 32129228, 64258456, 128516912]

約数ペア:

[(1, 128516912), (2, 64258456), (4, 32129228), (8, 16064614), (16, 8032307), (19, 6764048), (38, 3382024), (76, 1691012), (152, 845506), (304, 422753)]