81771742510

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{19515929}}^1$

素因数の和:19516355

約数の個数: 16

約数和(自身を含む): 147540430800

約数和(自身を除く): 65768688290

約数列:

[1, 2, 5, 10, 419, 838, 2095, 4190, 19515929, 39031858, 97579645, 195159290, 8177174251, 16354348502, 40885871255, 81771742510]

約数ペア:

[(1, 81771742510), (2, 40885871255), (5, 16354348502), (10, 8177174251), (419, 195159290), (838, 97579645), (2095, 39031858), (4190, 19515929)]