1331915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:710

約数の個数: 16

約数和(自身を含む): 1779456

約数和(自身を除く): 447541

約数列:

[1, 5, 13, 31, 65, 155, 403, 661, 2015, 3305, 8593, 20491, 42965, 102455, 266383, 1331915]

約数ペア:

[(1, 1331915), (5, 266383), (13, 102455), (31, 42965), (65, 20491), (155, 8593), (403, 3305), (661, 2015)]