261939826

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1\times {\mathrm{6163}}^1$

素因数の和:6513

約数の個数: 16

約数和(自身を含む): 399427200

約数和(自身を除く): 137487374

約数列:

[1, 2, 79, 158, 269, 538, 6163, 12326, 21251, 42502, 486877, 973754, 1657847, 3315694, 130969913, 261939826]

約数ペア:

[(1, 261939826), (2, 130969913), (79, 3315694), (158, 1657847), (269, 973754), (538, 486877), (6163, 42502), (12326, 21251)]