20510716

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{659}}^1$

素因数の和:945

約数の個数: 24

約数和(自身を含む): 37255680

約数和(自身を除く): 16744964

約数列:

[1, 2, 4, 31, 62, 124, 251, 502, 659, 1004, 1318, 2636, 7781, 15562, 20429, 31124, 40858, 81716, 165409, 330818, 661636, 5127679, 10255358, 20510716]

約数ペア:

[(1, 20510716), (2, 10255358), (4, 5127679), (31, 661636), (62, 330818), (124, 165409), (251, 81716), (502, 40858), (659, 31124), (1004, 20429), (1318, 15562), (2636, 7781)]