201685420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127649}}^1$

素因数の和:127737

約数の個数: 24

約数和(自身を含む): 428904000

約数和(自身を除く): 227218580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 127649, 255298, 510596, 638245, 1276490, 2552980, 10084271, 20168542, 40337084, 50421355, 100842710, 201685420]

約数ペア:

[(1, 201685420), (2, 100842710), (4, 50421355), (5, 40337084), (10, 20168542), (20, 10084271), (79, 2552980), (158, 1276490), (316, 638245), (395, 510596), (790, 255298), (1580, 127649)]