138701890

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{34589}}^1$

素因数の和:34997

約数の個数: 16

約数和(自身を含む): 250293240

約数和(自身を除く): 111591350

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 34589, 69178, 172945, 345890, 13870189, 27740378, 69350945, 138701890]

約数ペア:

[(1, 138701890), (2, 69350945), (5, 27740378), (10, 13870189), (401, 345890), (802, 172945), (2005, 69178), (4010, 34589)]