202020208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{971251}}^1$

素因数の和:971272

約数の個数: 20

約数和(自身を含む): 421523368

約数和(自身を除く): 219503160

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 971251, 1942502, 3885004, 7770008, 12626263, 15540016, 25252526, 50505052, 101010104, 202020208]

約数ペア:

[(1, 202020208), (2, 101010104), (4, 50505052), (8, 25252526), (13, 15540016), (16, 12626263), (26, 7770008), (52, 3885004), (104, 1942502), (208, 971251)]