28753712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{138239}}^1$

素因数の和:138260

約数の個数: 20

約数和(自身を含む): 59996160

約数和(自身を除く): 31242448

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 138239, 276478, 552956, 1105912, 1797107, 2211824, 3594214, 7188428, 14376856, 28753712]

約数ペア:

[(1, 28753712), (2, 14376856), (4, 7188428), (8, 3594214), (13, 2211824), (16, 1797107), (26, 1105912), (52, 552956), (104, 276478), (208, 138239)]