644821630

素因数分解:

$2^1\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{63907}}^1$

素因数の和:64923

約数の個数: 16

約数和(自身を含む): 1161847440

約数和(自身を除く): 517025810

約数列:

[1, 2, 5, 10, 1009, 2018, 5045, 10090, 63907, 127814, 319535, 639070, 64482163, 128964326, 322410815, 644821630]

約数ペア:

[(1, 644821630), (2, 322410815), (5, 128964326), (10, 64482163), (1009, 639070), (2018, 319535), (5045, 127814), (10090, 63907)]