398195824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^2$

素因数の和:486

約数の個数: 60

約数和(自身を含む): 854221368

約数和(自身を除く): 456025544

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 211, 344, 422, 559, 688, 844, 1118, 1688, 2236, 2743, 3376, 4472, 5486, 8944, 9073, 10972, 18146, 21944, 36292, 43888, 44521, 72584, 89042, 117949, 145168, 178084, 235898, 356168, 471796, 578773, 712336, 943592, 1157546, 1887184, 1914403, 2315092, 3828806, 4630184, 7657612, 9260368, 15315224, 24887239, 30630448, 49774478, 99548956, 199097912, 398195824]

約数ペア:

[(1, 398195824), (2, 199097912), (4, 99548956), (8, 49774478), (13, 30630448), (16, 24887239), (26, 15315224), (43, 9260368), (52, 7657612), (86, 4630184), (104, 3828806), (172, 2315092), (208, 1914403), (211, 1887184), (344, 1157546), (422, 943592), (559, 712336), (688, 578773), (844, 471796), (1118, 356168), (1688, 235898), (2236, 178084), (2743, 145168), (3376, 117949), (4472, 89042), (5486, 72584), (8944, 44521), (9073, 43888), (10972, 36292), (18146, 21944)]