28660265

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 38188800

約数和(自身を除く): 9528535

約数列:

[1, 5, 19, 29, 95, 101, 103, 145, 505, 515, 551, 1919, 1957, 2755, 2929, 2987, 9595, 9785, 10403, 14645, 14935, 52015, 55651, 56753, 197657, 278255, 283765, 301687, 988285, 1508435, 5732053, 28660265]

約数ペア:

[(1, 28660265), (5, 5732053), (19, 1508435), (29, 988285), (95, 301687), (101, 283765), (103, 278255), (145, 197657), (505, 56753), (515, 55651), (551, 52015), (1919, 14935), (1957, 14645), (2755, 10403), (2929, 9785), (2987, 9595)]