399996

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:322

約数の個数: 36

約数和(自身を含む): 1039584

約数和(自身を除く): 639588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 271, 369, 492, 542, 738, 813, 1084, 1476, 1626, 2439, 3252, 4878, 9756, 11111, 22222, 33333, 44444, 66666, 99999, 133332, 199998, 399996]

約数ペア:

[(1, 399996), (2, 199998), (3, 133332), (4, 99999), (6, 66666), (9, 44444), (12, 33333), (18, 22222), (36, 11111), (41, 9756), (82, 4878), (123, 3252), (164, 2439), (246, 1626), (271, 1476), (369, 1084), (492, 813), (542, 738)]