257831242

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1\times {\mathrm{181}}^1$

素因数の和:558

約数の個数: 32

約数和(自身を含む): 410417280

約数和(自身を除く): 152586038

約数列:

[1, 2, 23, 46, 173, 179, 181, 346, 358, 362, 3979, 4117, 4163, 7958, 8234, 8326, 30967, 31313, 32399, 61934, 62626, 64798, 712241, 720199, 745177, 1424482, 1440398, 1490354, 5605027, 11210054, 128915621, 257831242]

約数ペア:

[(1, 257831242), (2, 128915621), (23, 11210054), (46, 5605027), (173, 1490354), (179, 1440398), (181, 1424482), (346, 745177), (358, 720199), (362, 712241), (3979, 64798), (4117, 62626), (4163, 61934), (7958, 32399), (8234, 31313), (8326, 30967)]