16685420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2311}}^1$

素因数の和:2358

約数の個数: 36

約数和(自身を含む): 36996624

約数和(自身を除く): 20311204

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 2311, 3610, 4622, 7220, 9244, 11555, 23110, 43909, 46220, 87818, 175636, 219545, 439090, 834271, 878180, 1668542, 3337084, 4171355, 8342710, 16685420]

約数ペア:

[(1, 16685420), (2, 8342710), (4, 4171355), (5, 3337084), (10, 1668542), (19, 878180), (20, 834271), (38, 439090), (76, 219545), (95, 175636), (190, 87818), (361, 46220), (380, 43909), (722, 23110), (1444, 11555), (1805, 9244), (2311, 7220), (3610, 4622)]