640057570

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2782859}}^1$

素因数の和:2782889

約数の個数: 16

約数和(自身を含む): 1202195520

約数和(自身を除く): 562137950

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 2782859, 5565718, 13914295, 27828590, 64005757, 128011514, 320028785, 640057570]

約数ペア:

[(1, 640057570), (2, 320028785), (5, 128011514), (10, 64005757), (23, 27828590), (46, 13914295), (115, 5565718), (230, 2782859)]