257418

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{227}}^1$

素因数の和:248

約数の個数: 40

約数和(自身を含む): 662112

約数和(自身を除く): 404694

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 227, 378, 454, 567, 681, 1134, 1362, 1589, 2043, 3178, 4086, 4767, 6129, 9534, 12258, 14301, 18387, 28602, 36774, 42903, 85806, 128709, 257418]

約数ペア:

[(1, 257418), (2, 128709), (3, 85806), (6, 42903), (7, 36774), (9, 28602), (14, 18387), (18, 14301), (21, 12258), (27, 9534), (42, 6129), (54, 4767), (63, 4086), (81, 3178), (126, 2043), (162, 1589), (189, 1362), (227, 1134), (378, 681), (454, 567)]