20870575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2617}}^1$

素因数の和:2667

約数の個数: 24

約数和(自身を含む): 29216880

約数和(自身を除く): 8346305

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1595, 2617, 7975, 13085, 28787, 65425, 75893, 143935, 379465, 719675, 834823, 1897325, 4174115, 20870575]

約数ペア:

[(1, 20870575), (5, 4174115), (11, 1897325), (25, 834823), (29, 719675), (55, 379465), (145, 143935), (275, 75893), (319, 65425), (725, 28787), (1595, 13085), (2617, 7975)]