355380040

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{13441}}^1$

素因数の和:14113

約数の個数: 32

約数和(自身を含む): 800874360

約数和(自身を除く): 445494320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 13220, 13441, 26440, 26882, 53764, 67205, 107528, 134410, 268820, 537640, 8884501, 17769002, 35538004, 44422505, 71076008, 88845010, 177690020, 355380040]

約数ペア:

[(1, 355380040), (2, 177690020), (4, 88845010), (5, 71076008), (8, 44422505), (10, 35538004), (20, 17769002), (40, 8884501), (661, 537640), (1322, 268820), (2644, 134410), (3305, 107528), (5288, 67205), (6610, 53764), (13220, 26882), (13441, 26440)]