12897580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{33941}}^1$

素因数の和:33969

約数の個数: 24

約数和(自身を含む): 28511280

約数和(自身を除く): 15613700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 33941, 67882, 135764, 169705, 339410, 644879, 678820, 1289758, 2579516, 3224395, 6448790, 12897580]

約数ペア:

[(1, 12897580), (2, 6448790), (4, 3224395), (5, 2579516), (10, 1289758), (19, 678820), (20, 644879), (38, 339410), (76, 169705), (95, 135764), (190, 67882), (380, 33941)]