138870905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{13411}}^1$

素因数の和:13544

約数の個数: 16

約数和(自身を含む): 177038400

約数和(自身を除く): 38167495

約数列:

[1, 5, 19, 95, 109, 545, 2071, 10355, 13411, 67055, 254809, 1274045, 1461799, 7308995, 27774181, 138870905]

約数ペア:

[(1, 138870905), (5, 27774181), (19, 7308995), (95, 1461799), (109, 1274045), (545, 254809), (2071, 67055), (10355, 13411)]