15986980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42071}}^1$

素因数の和:42099

約数の個数: 24

約数和(自身を含む): 35340480

約数和(自身を除く): 19353500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 42071, 84142, 168284, 210355, 420710, 799349, 841420, 1598698, 3197396, 3996745, 7993490, 15986980]

約数ペア:

[(1, 15986980), (2, 7993490), (4, 3996745), (5, 3197396), (10, 1598698), (19, 841420), (20, 799349), (38, 420710), (76, 210355), (95, 168284), (190, 84142), (380, 42071)]