257396136

素因数分解:

$2^3\times 3^1\times {\mathrm{131}}^1\times {\mathrm{81869}}^1$

素因数の和:82009

約数の個数: 32

約数和(自身を含む): 648410400

約数和(自身を除く): 391014264

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 131, 262, 393, 524, 786, 1048, 1572, 3144, 81869, 163738, 245607, 327476, 491214, 654952, 982428, 1964856, 10724839, 21449678, 32174517, 42899356, 64349034, 85798712, 128698068, 257396136]

約数ペア:

[(1, 257396136), (2, 128698068), (3, 85798712), (4, 64349034), (6, 42899356), (8, 32174517), (12, 21449678), (24, 10724839), (131, 1964856), (262, 982428), (393, 654952), (524, 491214), (786, 327476), (1048, 245607), (1572, 163738), (3144, 81869)]