71778395

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 96702144

約数和(自身を除く): 24923749

約数列:

[1, 5, 13, 43, 61, 65, 215, 305, 421, 559, 793, 2105, 2623, 2795, 3965, 5473, 13115, 18103, 25681, 27365, 34099, 90515, 128405, 170495, 235339, 333853, 1104283, 1176695, 1669265, 5521415, 14355679, 71778395]

約数ペア:

[(1, 71778395), (5, 14355679), (13, 5521415), (43, 1669265), (61, 1176695), (65, 1104283), (215, 333853), (305, 235339), (421, 170495), (559, 128405), (793, 90515), (2105, 34099), (2623, 27365), (2795, 25681), (3965, 18103), (5473, 13115)]