640886399

素因数分解:

${\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{2089}}^1$

素因数の和:2338

約数の個数: 16

約数和(自身を含む): 677160000

約数和(自身を除く): 36273601

約数列:

[1, 29, 71, 149, 2059, 2089, 4321, 10579, 60581, 148319, 306791, 311261, 4301251, 9026569, 22099531, 640886399]

約数ペア:

[(1, 640886399), (29, 22099531), (71, 9026569), (149, 4301251), (2059, 311261), (2089, 306791), (4321, 148319), (10579, 60581)]