81208768

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1283}}^1$

素因数の和:1361

約数の個数: 56

約数和(自身を含む): 172199808

約数和(自身を除く): 90991040

約数列:

[1, 2, 4, 8, 16, 23, 32, 43, 46, 64, 86, 92, 172, 184, 344, 368, 688, 736, 989, 1283, 1376, 1472, 1978, 2566, 2752, 3956, 5132, 7912, 10264, 15824, 20528, 29509, 31648, 41056, 55169, 59018, 63296, 82112, 110338, 118036, 220676, 236072, 441352, 472144, 882704, 944288, 1268887, 1765408, 1888576, 2537774, 3530816, 5075548, 10151096, 20302192, 40604384, 81208768]

約数ペア:

[(1, 81208768), (2, 40604384), (4, 20302192), (8, 10151096), (16, 5075548), (23, 3530816), (32, 2537774), (43, 1888576), (46, 1765408), (64, 1268887), (86, 944288), (92, 882704), (172, 472144), (184, 441352), (344, 236072), (368, 220676), (688, 118036), (736, 110338), (989, 82112), (1283, 63296), (1376, 59018), (1472, 55169), (1978, 41056), (2566, 31648), (2752, 29509), (3956, 20528), (5132, 15824), (7912, 10264)]