28949745920

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{4273}}^1$

素因数の和:4440

約数の個数: 144

約数和(自身を含む): 71286216960

約数和(自身を除く): 42336471040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 79, 80, 128, 134, 158, 160, 256, 268, 316, 320, 335, 395, 536, 632, 640, 670, 790, 1072, 1264, 1280, 1340, 1580, 2144, 2528, 2680, 3160, 4273, 4288, 5056, 5293, 5360, 6320, 8546, 8576, 10112, 10586, 10720, 12640, 17092, 17152, 20224, 21172, 21365, 21440, 25280, 26465, 34184, 42344, 42730, 42880, 50560, 52930, 68368, 84688, 85460, 85760, 101120, 105860, 136736, 169376, 170920, 211720, 273472, 286291, 337567, 338752, 341840, 423440, 546944, 572582, 675134, 677504, 683680, 846880, 1093888, 1145164, 1350268, 1355008, 1367360, 1431455, 1687835, 1693760, 2290328, 2700536, 2734720, 2862910, 3375670, 3387520, 4580656, 5401072, 5469440, 5725820, 6751340, 6775040, 9161312, 10802144, 11451640, 13502680, 18322624, 21604288, 22616989, 22903280, 27005360, 36645248, 43208576, 45233978, 45806560, 54010720, 73290496, 86417152, 90467956, 91613120, 108021440, 113084945, 180935912, 183226240, 216042880, 226169890, 361871824, 366452480, 432085760, 452339780, 723743648, 904679560, 1447487296, 1809359120, 2894974592, 3618718240, 5789949184, 7237436480, 14474872960, 28949745920]

約数ペア:

[(1, 28949745920), (2, 14474872960), (4, 7237436480), (5, 5789949184), (8, 3618718240), (10, 2894974592), (16, 1809359120), (20, 1447487296), (32, 904679560), (40, 723743648), (64, 452339780), (67, 432085760), (79, 366452480), (80, 361871824), (128, 226169890), (134, 216042880), (158, 183226240), (160, 180935912), (256, 113084945), (268, 108021440), (316, 91613120), (320, 90467956), (335, 86417152), (395, 73290496), (536, 54010720), (632, 45806560), (640, 45233978), (670, 43208576), (790, 36645248), (1072, 27005360), (1264, 22903280), (1280, 22616989), (1340, 21604288), (1580, 18322624), (2144, 13502680), (2528, 11451640), (2680, 10802144), (3160, 9161312), (4273, 6775040), (4288, 6751340), (5056, 5725820), (5293, 5469440), (5360, 5401072), (6320, 4580656), (8546, 3387520), (8576, 3375670), (10112, 2862910), (10586, 2734720), (10720, 2700536), (12640, 2290328), (17092, 1693760), (17152, 1687835), (20224, 1431455), (21172, 1367360), (21365, 1355008), (21440, 1350268), (25280, 1145164), (26465, 1093888), (34184, 846880), (42344, 683680), (42730, 677504), (42880, 675134), (50560, 572582), (52930, 546944), (68368, 423440), (84688, 341840), (85460, 338752), (85760, 337567), (101120, 286291), (105860, 273472), (136736, 211720), (169376, 170920)]