128520231020

素因数分解:

$2^2\times 5^1\times {\mathrm{6426011551}}^1$

素因数の和:6426011560

約数の個数: 12

約数和(自身を含む): 269892485184

約数和(自身を除く): 141372254164

約数列:

[1, 2, 4, 5, 10, 20, 6426011551, 12852023102, 25704046204, 32130057755, 64260115510, 128520231020]

約数ペア:

[(1, 128520231020), (2, 64260115510), (4, 32130057755), (5, 25704046204), (10, 12852023102), (20, 6426011551)]