20388368

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:125

約数の個数: 160

約数和(自身を含む): 56663040

約数和(自身を除く): 36274672

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 19, 22, 26, 28, 38, 44, 52, 56, 67, 76, 77, 88, 91, 104, 112, 133, 134, 143, 152, 154, 176, 182, 208, 209, 247, 266, 268, 286, 304, 308, 364, 418, 469, 494, 532, 536, 572, 616, 728, 737, 836, 871, 938, 988, 1001, 1064, 1072, 1144, 1232, 1273, 1456, 1463, 1474, 1672, 1729, 1742, 1876, 1976, 2002, 2128, 2288, 2546, 2717, 2926, 2948, 3344, 3458, 3484, 3752, 3952, 4004, 5092, 5159, 5434, 5852, 5896, 6097, 6916, 6968, 7504, 8008, 8911, 9581, 10184, 10318, 10868, 11704, 11792, 12194, 13832, 13936, 14003, 16016, 16549, 17822, 19019, 19162, 20368, 20636, 21736, 23408, 24388, 27664, 28006, 33098, 35644, 38038, 38324, 41272, 43472, 48776, 56012, 66196, 67067, 71288, 76076, 76648, 82544, 97552, 98021, 112024, 115843, 132392, 134134, 142576, 152152, 153296, 182039, 196042, 224048, 231686, 264784, 268268, 304304, 364078, 392084, 463372, 536536, 728156, 784168, 926744, 1073072, 1274273, 1456312, 1568336, 1853488, 2548546, 2912624, 5097092, 10194184, 20388368]

約数ペア:

[(1, 20388368), (2, 10194184), (4, 5097092), (7, 2912624), (8, 2548546), (11, 1853488), (13, 1568336), (14, 1456312), (16, 1274273), (19, 1073072), (22, 926744), (26, 784168), (28, 728156), (38, 536536), (44, 463372), (52, 392084), (56, 364078), (67, 304304), (76, 268268), (77, 264784), (88, 231686), (91, 224048), (104, 196042), (112, 182039), (133, 153296), (134, 152152), (143, 142576), (152, 134134), (154, 132392), (176, 115843), (182, 112024), (208, 98021), (209, 97552), (247, 82544), (266, 76648), (268, 76076), (286, 71288), (304, 67067), (308, 66196), (364, 56012), (418, 48776), (469, 43472), (494, 41272), (532, 38324), (536, 38038), (572, 35644), (616, 33098), (728, 28006), (737, 27664), (836, 24388), (871, 23408), (938, 21736), (988, 20636), (1001, 20368), (1064, 19162), (1072, 19019), (1144, 17822), (1232, 16549), (1273, 16016), (1456, 14003), (1463, 13936), (1474, 13832), (1672, 12194), (1729, 11792), (1742, 11704), (1876, 10868), (1976, 10318), (2002, 10184), (2128, 9581), (2288, 8911), (2546, 8008), (2717, 7504), (2926, 6968), (2948, 6916), (3344, 6097), (3458, 5896), (3484, 5852), (3752, 5434), (3952, 5159), (4004, 5092)]