138400496

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{665387}}^1$

素因数の和:665408

約数の個数: 20

約数和(自身を含む): 288778392

約数和(自身を除く): 150377896

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 665387, 1330774, 2661548, 5323096, 8650031, 10646192, 17300062, 34600124, 69200248, 138400496]

約数ペア:

[(1, 138400496), (2, 69200248), (4, 34600124), (8, 17300062), (13, 10646192), (16, 8650031), (26, 5323096), (52, 2661548), (104, 1330774), (208, 665387)]