20504784

素因数分解:

$2^4\times 3^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:268

約数の個数: 80

約数和(自身を含む): 55353600

約数和(自身を除く): 34848816

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 47, 48, 61, 94, 122, 141, 149, 183, 188, 244, 282, 298, 366, 376, 447, 488, 564, 596, 732, 752, 894, 976, 1128, 1192, 1464, 1788, 2256, 2384, 2867, 2928, 3576, 5734, 7003, 7152, 8601, 9089, 11468, 14006, 17202, 18178, 21009, 22936, 27267, 28012, 34404, 36356, 42018, 45872, 54534, 56024, 68808, 72712, 84036, 109068, 112048, 137616, 145424, 168072, 218136, 336144, 427183, 436272, 854366, 1281549, 1708732, 2563098, 3417464, 5126196, 6834928, 10252392, 20504784]

約数ペア:

[(1, 20504784), (2, 10252392), (3, 6834928), (4, 5126196), (6, 3417464), (8, 2563098), (12, 1708732), (16, 1281549), (24, 854366), (47, 436272), (48, 427183), (61, 336144), (94, 218136), (122, 168072), (141, 145424), (149, 137616), (183, 112048), (188, 109068), (244, 84036), (282, 72712), (298, 68808), (366, 56024), (376, 54534), (447, 45872), (488, 42018), (564, 36356), (596, 34404), (732, 28012), (752, 27267), (894, 22936), (976, 21009), (1128, 18178), (1192, 17202), (1464, 14006), (1788, 11468), (2256, 9089), (2384, 8601), (2867, 7152), (2928, 7003), (3576, 5734)]