257201672

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{7517}}^1$

素因数の和:7590

約数の個数: 64

約数和(自身を含む): 606251520

約数和(自身を除く): 349049848

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 47, 52, 56, 91, 94, 104, 182, 188, 329, 364, 376, 611, 658, 728, 1222, 1316, 2444, 2632, 4277, 4888, 7517, 8554, 15034, 17108, 30068, 34216, 52619, 60136, 97721, 105238, 195442, 210476, 353299, 390884, 420952, 684047, 706598, 781768, 1368094, 1413196, 2473093, 2736188, 2826392, 4592887, 4946186, 5472376, 9185774, 9892372, 18371548, 19784744, 32150209, 36743096, 64300418, 128600836, 257201672]

約数ペア:

[(1, 257201672), (2, 128600836), (4, 64300418), (7, 36743096), (8, 32150209), (13, 19784744), (14, 18371548), (26, 9892372), (28, 9185774), (47, 5472376), (52, 4946186), (56, 4592887), (91, 2826392), (94, 2736188), (104, 2473093), (182, 1413196), (188, 1368094), (329, 781768), (364, 706598), (376, 684047), (611, 420952), (658, 390884), (728, 353299), (1222, 210476), (1316, 195442), (2444, 105238), (2632, 97721), (4277, 60136), (4888, 52619), (7517, 34216), (8554, 30068), (15034, 17108)]