1897975

素因数分解:

$5^2\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:151

約数の個数: 18

約数和(自身を含む): 2462640

約数和(自身を除く): 564665

約数列:

[1, 5, 25, 31, 79, 155, 395, 775, 961, 1975, 2449, 4805, 12245, 24025, 61225, 75919, 379595, 1897975]

約数ペア:

[(1, 1897975), (5, 379595), (25, 75919), (31, 61225), (79, 24025), (155, 12245), (395, 4805), (775, 2449), (961, 1975)]