398942384

素因数分解:

$2^4\times {\mathrm{331}}^1\times {\mathrm{75329}}^1$

素因数の和:75668

約数の個数: 20

約数和(自身を含む): 775296360

約数和(自身を除く): 376353976

約数列:

[1, 2, 4, 8, 16, 331, 662, 1324, 2648, 5296, 75329, 150658, 301316, 602632, 1205264, 24933899, 49867798, 99735596, 199471192, 398942384]

約数ペア:

[(1, 398942384), (2, 199471192), (4, 99735596), (8, 49867798), (16, 24933899), (331, 1205264), (662, 602632), (1324, 301316), (2648, 150658), (5296, 75329)]