644784156728

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{197}}^1\times {\mathrm{2161}}^1\times {\mathrm{2281}}^1$

素因数の和:4728

約数の個数: 64

約数和(自身を含む): 1230855484320

約数和(自身を除く): 586071327592

約数列:

[1, 2, 4, 8, 83, 166, 197, 332, 394, 664, 788, 1576, 2161, 2281, 4322, 4562, 8644, 9124, 16351, 17288, 18248, 32702, 65404, 130808, 179363, 189323, 358726, 378646, 425717, 449357, 717452, 757292, 851434, 898714, 1434904, 1514584, 1702868, 1797428, 3405736, 3594856, 4929241, 9858482, 19716964, 35334511, 37296631, 39433928, 70669022, 74593262, 141338044, 149186524, 282676088, 298373048, 409127003, 818254006, 971060477, 1636508012, 1942120954, 3273016024, 3884241908, 7768483816, 80598019591, 161196039182, 322392078364, 644784156728]

約数ペア:

[(1, 644784156728), (2, 322392078364), (4, 161196039182), (8, 80598019591), (83, 7768483816), (166, 3884241908), (197, 3273016024), (332, 1942120954), (394, 1636508012), (664, 971060477), (788, 818254006), (1576, 409127003), (2161, 298373048), (2281, 282676088), (4322, 149186524), (4562, 141338044), (8644, 74593262), (9124, 70669022), (16351, 39433928), (17288, 37296631), (18248, 35334511), (32702, 19716964), (65404, 9858482), (130808, 4929241), (179363, 3594856), (189323, 3405736), (358726, 1797428), (378646, 1702868), (425717, 1514584), (449357, 1434904), (717452, 898714), (757292, 851434)]