128419672

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{16231}}^1$

素因数の和:16303

約数の個数: 32

約数和(自身を含む): 257114880

約数和(自身を除く): 128695208

約数列:

[1, 2, 4, 8, 23, 43, 46, 86, 92, 172, 184, 344, 989, 1978, 3956, 7912, 16231, 32462, 64924, 129848, 373313, 697933, 746626, 1395866, 1493252, 2791732, 2986504, 5583464, 16052459, 32104918, 64209836, 128419672]

約数ペア:

[(1, 128419672), (2, 64209836), (4, 32104918), (8, 16052459), (23, 5583464), (43, 2986504), (46, 2791732), (86, 1493252), (92, 1395866), (172, 746626), (184, 697933), (344, 373313), (989, 129848), (1978, 64924), (3956, 32462), (7912, 16231)]