28729064

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:143

約数の個数: 128

約数和(自身を含む): 73113600

約数和(自身を除く): 44384536

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 31, 38, 52, 56, 62, 67, 76, 91, 104, 124, 133, 134, 152, 182, 217, 247, 248, 266, 268, 364, 403, 434, 469, 494, 532, 536, 589, 728, 806, 868, 871, 938, 988, 1064, 1178, 1273, 1612, 1729, 1736, 1742, 1876, 1976, 2077, 2356, 2546, 2821, 3224, 3458, 3484, 3752, 4123, 4154, 4712, 5092, 5642, 6097, 6916, 6968, 7657, 8246, 8308, 8911, 10184, 11284, 12194, 13832, 14539, 15314, 16492, 16549, 16616, 17822, 22568, 24388, 27001, 29078, 30628, 32984, 33098, 35644, 39463, 48776, 53599, 54002, 58156, 61256, 66196, 71288, 78926, 107198, 108004, 115843, 116312, 132392, 157852, 189007, 214396, 216008, 231686, 276241, 315704, 378014, 428792, 463372, 513019, 552482, 756028, 926744, 1026038, 1104964, 1512056, 2052076, 2209928, 3591133, 4104152, 7182266, 14364532, 28729064]

約数ペア:

[(1, 28729064), (2, 14364532), (4, 7182266), (7, 4104152), (8, 3591133), (13, 2209928), (14, 2052076), (19, 1512056), (26, 1104964), (28, 1026038), (31, 926744), (38, 756028), (52, 552482), (56, 513019), (62, 463372), (67, 428792), (76, 378014), (91, 315704), (104, 276241), (124, 231686), (133, 216008), (134, 214396), (152, 189007), (182, 157852), (217, 132392), (247, 116312), (248, 115843), (266, 108004), (268, 107198), (364, 78926), (403, 71288), (434, 66196), (469, 61256), (494, 58156), (532, 54002), (536, 53599), (589, 48776), (728, 39463), (806, 35644), (868, 33098), (871, 32984), (938, 30628), (988, 29078), (1064, 27001), (1178, 24388), (1273, 22568), (1612, 17822), (1729, 16616), (1736, 16549), (1742, 16492), (1876, 15314), (1976, 14539), (2077, 13832), (2356, 12194), (2546, 11284), (2821, 10184), (3224, 8911), (3458, 8308), (3484, 8246), (3752, 7657), (4123, 6968), (4154, 6916), (4712, 6097), (5092, 5642)]