205565906

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 392345856

約数和(自身を除く): 186779950

約数列:

[1, 2, 7, 13, 14, 26, 53, 91, 101, 106, 182, 202, 211, 371, 422, 689, 707, 742, 1313, 1378, 1414, 1477, 2626, 2743, 2954, 4823, 5353, 5486, 9191, 9646, 10706, 11183, 18382, 19201, 21311, 22366, 37471, 38402, 42622, 69589, 74942, 78281, 139178, 145379, 149177, 156562, 277043, 290758, 298354, 487123, 554086, 974246, 1017653, 1129483, 1939301, 2035306, 2258966, 3878602, 7906381, 14683279, 15812762, 29366558, 102782953, 205565906]

約数ペア:

[(1, 205565906), (2, 102782953), (7, 29366558), (13, 15812762), (14, 14683279), (26, 7906381), (53, 3878602), (91, 2258966), (101, 2035306), (106, 1939301), (182, 1129483), (202, 1017653), (211, 974246), (371, 554086), (422, 487123), (689, 298354), (707, 290758), (742, 277043), (1313, 156562), (1378, 149177), (1414, 145379), (1477, 139178), (2626, 78281), (2743, 74942), (2954, 69589), (4823, 42622), (5353, 38402), (5486, 37471), (9191, 22366), (9646, 21311), (10706, 19201), (11183, 18382)]