257291078

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{1297}}^1$

素因数の和:1508

約数の個数: 32

約数和(自身を含む): 430645248

約数和(自身を除く): 173354170

約数列:

[1, 2, 11, 22, 71, 127, 142, 254, 781, 1297, 1397, 1562, 2594, 2794, 9017, 14267, 18034, 28534, 92087, 99187, 164719, 184174, 198374, 329438, 1012957, 1811909, 2025914, 3623818, 11695049, 23390098, 128645539, 257291078]

約数ペア:

[(1, 257291078), (2, 128645539), (11, 23390098), (22, 11695049), (71, 3623818), (127, 2025914), (142, 1811909), (254, 1012957), (781, 329438), (1297, 198374), (1397, 184174), (1562, 164719), (2594, 99187), (2794, 92087), (9017, 28534), (14267, 18034)]