20689536

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:246

約数の個数: 128

約数和(自身を含む): 64627200

約数和(自身を除く): 43937664

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 43, 48, 56, 64, 84, 86, 96, 112, 128, 129, 168, 172, 179, 192, 224, 258, 301, 336, 344, 358, 384, 448, 516, 537, 602, 672, 688, 716, 896, 903, 1032, 1074, 1204, 1253, 1344, 1376, 1432, 1806, 2064, 2148, 2408, 2506, 2688, 2752, 2864, 3612, 3759, 4128, 4296, 4816, 5012, 5504, 5728, 7224, 7518, 7697, 8256, 8592, 9632, 10024, 11456, 14448, 15036, 15394, 16512, 17184, 19264, 20048, 22912, 23091, 28896, 30072, 30788, 34368, 38528, 40096, 46182, 53879, 57792, 60144, 61576, 68736, 80192, 92364, 107758, 115584, 120288, 123152, 160384, 161637, 184728, 215516, 240576, 246304, 323274, 369456, 431032, 481152, 492608, 646548, 738912, 862064, 985216, 1293096, 1477824, 1724128, 2586192, 2955648, 3448256, 5172384, 6896512, 10344768, 20689536]

約数ペア:

[(1, 20689536), (2, 10344768), (3, 6896512), (4, 5172384), (6, 3448256), (7, 2955648), (8, 2586192), (12, 1724128), (14, 1477824), (16, 1293096), (21, 985216), (24, 862064), (28, 738912), (32, 646548), (42, 492608), (43, 481152), (48, 431032), (56, 369456), (64, 323274), (84, 246304), (86, 240576), (96, 215516), (112, 184728), (128, 161637), (129, 160384), (168, 123152), (172, 120288), (179, 115584), (192, 107758), (224, 92364), (258, 80192), (301, 68736), (336, 61576), (344, 60144), (358, 57792), (384, 53879), (448, 46182), (516, 40096), (537, 38528), (602, 34368), (672, 30788), (688, 30072), (716, 28896), (896, 23091), (903, 22912), (1032, 20048), (1074, 19264), (1204, 17184), (1253, 16512), (1344, 15394), (1376, 15036), (1432, 14448), (1806, 11456), (2064, 10024), (2148, 9632), (2408, 8592), (2506, 8256), (2688, 7697), (2752, 7518), (2864, 7224), (3612, 5728), (3759, 5504), (4128, 5012), (4296, 4816)]