81872884

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{20407}}^1$

素因数の和:20487

約数の個数: 24

約数和(自身を含む): 154284480

約数和(自身を除く): 72411596

約数列:

[1, 2, 4, 17, 34, 59, 68, 118, 236, 1003, 2006, 4012, 20407, 40814, 81628, 346919, 693838, 1204013, 1387676, 2408026, 4816052, 20468221, 40936442, 81872884]

約数ペア:

[(1, 81872884), (2, 40936442), (4, 20468221), (17, 4816052), (34, 2408026), (59, 1387676), (68, 1204013), (118, 693838), (236, 346919), (1003, 81628), (2006, 40814), (4012, 20407)]