18981805

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{1201}}^1$

素因数の和:1344

約数の個数: 16

約数和(自身を含む): 23799600

約数和(自身を除く): 4817795

約数列:

[1, 5, 29, 109, 145, 545, 1201, 3161, 6005, 15805, 34829, 130909, 174145, 654545, 3796361, 18981805]

約数ペア:

[(1, 18981805), (5, 3796361), (29, 654545), (109, 174145), (145, 130909), (545, 34829), (1201, 15805), (3161, 6005)]