81547215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{1607}}^1$

素因数の和:1831

約数の個数: 32

約数和(自身を含む): 138931200

約数和(自身を除く): 57383985

約数列:

[1, 3, 5, 15, 17, 51, 85, 199, 255, 597, 995, 1607, 2985, 3383, 4821, 8035, 10149, 16915, 24105, 27319, 50745, 81957, 136595, 319793, 409785, 959379, 1598965, 4796895, 5436481, 16309443, 27182405, 81547215]

約数ペア:

[(1, 81547215), (3, 27182405), (5, 16309443), (15, 5436481), (17, 4796895), (51, 1598965), (85, 959379), (199, 409785), (255, 319793), (597, 136595), (995, 81957), (1607, 50745), (2985, 27319), (3383, 24105), (4821, 16915), (8035, 10149)]