320426360

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{12119}}^1$

素因数の和:12791

約数の個数: 32

約数和(自身を含む): 722109600

約数和(自身を除く): 401683240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 12119, 13220, 24238, 26440, 48476, 60595, 96952, 121190, 242380, 484760, 8010659, 16021318, 32042636, 40053295, 64085272, 80106590, 160213180, 320426360]

約数ペア:

[(1, 320426360), (2, 160213180), (4, 80106590), (5, 64085272), (8, 40053295), (10, 32042636), (20, 16021318), (40, 8010659), (661, 484760), (1322, 242380), (2644, 121190), (3305, 96952), (5288, 60595), (6610, 48476), (12119, 26440), (13220, 24238)]