639680042

素因数分解:

$2^1\times {\mathrm{569}}^1\times {\mathrm{683}}^1\times {\mathrm{823}}^1$

素因数の和:2077

約数の個数: 16

約数和(自身を含む): 963783360

約数和(自身を除く): 324103318

約数列:

[1, 2, 569, 683, 823, 1138, 1366, 1646, 388627, 468287, 562109, 777254, 936574, 1124218, 319840021, 639680042]

約数ペア:

[(1, 639680042), (2, 319840021), (569, 1124218), (683, 936574), (823, 777254), (1138, 562109), (1366, 468287), (1646, 388627)]