257172218

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{1283}}^1$

素因数の和:1430

約数の個数: 32

約数和(自身を含む): 412687872

約数和(自身を除く): 155515654

約数列:

[1, 2, 31, 53, 61, 62, 106, 122, 1283, 1643, 1891, 2566, 3233, 3286, 3782, 6466, 39773, 67999, 78263, 79546, 100223, 135998, 156526, 200446, 2107969, 2426153, 4147939, 4215938, 4852306, 8295878, 128586109, 257172218]

約数ペア:

[(1, 257172218), (2, 128586109), (31, 8295878), (53, 4852306), (61, 4215938), (62, 4147939), (106, 2426153), (122, 2107969), (1283, 200446), (1643, 156526), (1891, 135998), (2566, 100223), (3233, 79546), (3286, 78263), (3782, 67999), (6466, 39773)]