81386408

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{328171}}^1$

素因数の和:328208

約数の個数: 16

約数和(自身を含む): 157522560

約数和(自身を除く): 76136152

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 328171, 656342, 1312684, 2625368, 10173301, 20346602, 40693204, 81386408]

約数ペア:

[(1, 81386408), (2, 40693204), (4, 20346602), (8, 10173301), (31, 2625368), (62, 1312684), (124, 656342), (248, 328171)]