20380016

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21589}}^1$

素因数の和:21656

約数の個数: 20

約数和(自身を含む): 40157400

約数和(自身を除く): 19777384

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21589, 43178, 86356, 172712, 345424, 1273751, 2547502, 5095004, 10190008, 20380016]

約数ペア:

[(1, 20380016), (2, 10190008), (4, 5095004), (8, 2547502), (16, 1273751), (59, 345424), (118, 172712), (236, 86356), (472, 43178), (944, 21589)]