20163798544

素因数分解:

$2^4\times {\mathrm{641}}^1\times {\mathrm{1966049}}^1$

素因数の和:1966698

約数の個数: 20

約数和(自身を含む): 39128327100

約数和(自身を除く): 18964528556

約数列:

[1, 2, 4, 8, 16, 641, 1282, 2564, 5128, 10256, 1966049, 3932098, 7864196, 15728392, 31456784, 1260237409, 2520474818, 5040949636, 10081899272, 20163798544]

約数ペア:

[(1, 20163798544), (2, 10081899272), (4, 5040949636), (8, 2520474818), (16, 1260237409), (641, 31456784), (1282, 15728392), (2564, 7864196), (5128, 3932098), (10256, 1966049)]