81657242

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{619}}^1\times {\mathrm{929}}^1$

素因数の和:1621

約数の個数: 16

約数和(自身を含む): 124545600

約数和(自身を除く): 42888358

約数列:

[1, 2, 71, 142, 619, 929, 1238, 1858, 43949, 65959, 87898, 131918, 575051, 1150102, 40828621, 81657242]

約数ペア:

[(1, 81657242), (2, 40828621), (71, 1150102), (142, 575051), (619, 131918), (929, 87898), (1238, 65959), (1858, 43949)]