28580778

素因数分解:

$2^1\times 3^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 63648000

約数和(自身を除く): 35067222

約数列:

[1, 2, 3, 6, 9, 18, 79, 101, 158, 199, 202, 237, 303, 398, 474, 597, 606, 711, 909, 1194, 1422, 1791, 1818, 3582, 7979, 15721, 15958, 20099, 23937, 31442, 40198, 47163, 47874, 60297, 71811, 94326, 120594, 141489, 143622, 180891, 282978, 361782, 1587821, 3175642, 4763463, 9526926, 14290389, 28580778]

約数ペア:

[(1, 28580778), (2, 14290389), (3, 9526926), (6, 4763463), (9, 3175642), (18, 1587821), (79, 361782), (101, 282978), (158, 180891), (199, 143622), (202, 141489), (237, 120594), (303, 94326), (398, 71811), (474, 60297), (597, 47874), (606, 47163), (711, 40198), (909, 31442), (1194, 23937), (1422, 20099), (1791, 15958), (1818, 15721), (3582, 7979)]