128880856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1239239}}^1$

素因数の和:1239258

約数の個数: 16

約数和(自身を含む): 260240400

約数和(自身を除く): 131359544

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1239239, 2478478, 4956956, 9913912, 16110107, 32220214, 64440428, 128880856]

約数ペア:

[(1, 128880856), (2, 64440428), (4, 32220214), (8, 16110107), (13, 9913912), (26, 4956956), (52, 2478478), (104, 1239239)]