20138344

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{81203}}^1$

素因数の和:81240

約数の個数: 16

約数和(自身を含む): 38977920

約数和(自身を除く): 18839576

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 81203, 162406, 324812, 649624, 2517293, 5034586, 10069172, 20138344]

約数ペア:

[(1, 20138344), (2, 10069172), (4, 5034586), (8, 2517293), (31, 649624), (62, 324812), (124, 162406), (248, 81203)]