138029905

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{379}}^1\times {\mathrm{431}}^1$

素因数の和:841

約数の個数: 24

約数和(自身を含む): 180247680

約数和(自身を除く): 42217775

約数列:

[1, 5, 13, 65, 169, 379, 431, 845, 1895, 2155, 4927, 5603, 24635, 28015, 64051, 72839, 163349, 320255, 364195, 816745, 2123537, 10617685, 27605981, 138029905]

約数ペア:

[(1, 138029905), (5, 27605981), (13, 10617685), (65, 2123537), (169, 816745), (379, 364195), (431, 320255), (845, 163349), (1895, 72839), (2155, 64051), (4927, 28015), (5603, 24635)]