19737580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51941}}^1$

素因数の和:51969

約数の個数: 24

約数和(自身を含む): 43631280

約数和(自身を除く): 23893700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 51941, 103882, 207764, 259705, 519410, 986879, 1038820, 1973758, 3947516, 4934395, 9868790, 19737580]

約数ペア:

[(1, 19737580), (2, 9868790), (4, 4934395), (5, 3947516), (10, 1973758), (19, 1038820), (20, 986879), (38, 519410), (76, 259705), (95, 207764), (190, 103882), (380, 51941)]