172989215

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{839}}^1$

素因数の和:1031

約数の個数: 32

約数和(自身を含む): 244823040

約数和(自身を除く): 71833825

約数列:

[1, 5, 7, 35, 43, 137, 215, 301, 685, 839, 959, 1505, 4195, 4795, 5873, 5891, 29365, 29455, 36077, 41237, 114943, 180385, 206185, 252539, 574715, 804601, 1262695, 4023005, 4942549, 24712745, 34597843, 172989215]

約数ペア:

[(1, 172989215), (5, 34597843), (7, 24712745), (35, 4942549), (43, 4023005), (137, 1262695), (215, 804601), (301, 574715), (685, 252539), (839, 206185), (959, 180385), (1505, 114943), (4195, 41237), (4795, 36077), (5873, 29455), (5891, 29365)]