1289764376

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{443}}^1\times {\mathrm{15823}}^1$

素因数の和:16295

約数の個数: 32

約数和(自身を含む): 2529308160

約数和(自身を除く): 1239543784

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 443, 886, 1772, 3544, 10189, 15823, 20378, 31646, 40756, 63292, 81512, 126584, 363929, 727858, 1455716, 2911432, 7009589, 14019178, 28038356, 56076712, 161220547, 322441094, 644882188, 1289764376]

約数ペア:

[(1, 1289764376), (2, 644882188), (4, 322441094), (8, 161220547), (23, 56076712), (46, 28038356), (92, 14019178), (184, 7009589), (443, 2911432), (886, 1455716), (1772, 727858), (3544, 363929), (10189, 126584), (15823, 81512), (20378, 63292), (31646, 40756)]