639539858

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{1451}}^1\times {\mathrm{7109}}^1$

素因数の和:8593

約数の個数: 16

約数和(自身を含む): 991077120

約数和(自身を除く): 351537262

約数列:

[1, 2, 31, 62, 1451, 2902, 7109, 14218, 44981, 89962, 220379, 440758, 10315159, 20630318, 319769929, 639539858]

約数ペア:

[(1, 639539858), (2, 319769929), (31, 20630318), (62, 10315159), (1451, 440758), (2902, 220379), (7109, 89962), (14218, 44981)]