28070965

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13931}}^1$

素因数の和:13980

約数の個数: 16

約数和(自身を含む): 37449216

約数和(自身を除く): 9378251

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 13931, 69655, 181103, 431861, 905515, 2159305, 5614193, 28070965]

約数ペア:

[(1, 28070965), (5, 5614193), (13, 2159305), (31, 905515), (65, 431861), (155, 181103), (403, 69655), (2015, 13931)]