646367020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2486027}}^1$

素因数の和:2486049

約数の個数: 24

約数和(自身を含む): 1461784464

約数和(自身を除く): 815417444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2486027, 4972054, 9944108, 12430135, 24860270, 32318351, 49720540, 64636702, 129273404, 161591755, 323183510, 646367020]

約数ペア:

[(1, 646367020), (2, 323183510), (4, 161591755), (5, 129273404), (10, 64636702), (13, 49720540), (20, 32318351), (26, 24860270), (52, 12430135), (65, 9944108), (130, 4972054), (260, 2486027)]