1290265921

素因数分解:

$7^1\times {\mathrm{181}}^1\times {\mathrm{229}}^1\times {\mathrm{4447}}^1$

素因数の和:4864

約数の個数: 16

約数和(自身を含む): 1489546240

約数和(自身を除く): 199280319

約数列:

[1, 7, 181, 229, 1267, 1603, 4447, 31129, 41449, 290143, 804907, 1018363, 5634349, 7128541, 184323703, 1290265921]

約数ペア:

[(1, 1290265921), (7, 184323703), (181, 7128541), (229, 5634349), (1267, 1018363), (1603, 804907), (4447, 290143), (31129, 41449)]