128771651840

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{407299}}^1$

素因数の和:407352

約数の個数: 144

約数和(自身を含む): 349658904000

約数和(自身を除く): 220887252160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 64, 65, 76, 80, 95, 104, 128, 130, 152, 160, 190, 208, 247, 256, 260, 304, 320, 380, 416, 494, 520, 608, 640, 760, 832, 988, 1040, 1216, 1235, 1280, 1520, 1664, 1976, 2080, 2432, 2470, 3040, 3328, 3952, 4160, 4864, 4940, 6080, 7904, 8320, 9880, 12160, 15808, 16640, 19760, 24320, 31616, 39520, 63232, 79040, 158080, 316160, 407299, 814598, 1629196, 2036495, 3258392, 4072990, 5294887, 6516784, 7738681, 8145980, 10589774, 13033568, 15477362, 16291960, 21179548, 26067136, 26474435, 30954724, 32583920, 38693405, 42359096, 52134272, 52948870, 61909448, 65167840, 77386810, 84718192, 100602853, 104268544, 105897740, 123818896, 130335680, 154773620, 169436384, 201205706, 211795480, 247637792, 260671360, 309547240, 338872768, 402411412, 423590960, 495275584, 503014265, 521342720, 619094480, 677745536, 804822824, 847181920, 990551168, 1006028530, 1238188960, 1355491072, 1609645648, 1694363840, 1981102336, 2012057060, 2476377920, 3219291296, 3388727680, 4024114120, 4952755840, 6438582592, 6777455360, 8048228240, 9905511680, 12877165184, 16096456480, 25754330368, 32192912960, 64385825920, 128771651840]

約数ペア:

[(1, 128771651840), (2, 64385825920), (4, 32192912960), (5, 25754330368), (8, 16096456480), (10, 12877165184), (13, 9905511680), (16, 8048228240), (19, 6777455360), (20, 6438582592), (26, 4952755840), (32, 4024114120), (38, 3388727680), (40, 3219291296), (52, 2476377920), (64, 2012057060), (65, 1981102336), (76, 1694363840), (80, 1609645648), (95, 1355491072), (104, 1238188960), (128, 1006028530), (130, 990551168), (152, 847181920), (160, 804822824), (190, 677745536), (208, 619094480), (247, 521342720), (256, 503014265), (260, 495275584), (304, 423590960), (320, 402411412), (380, 338872768), (416, 309547240), (494, 260671360), (520, 247637792), (608, 211795480), (640, 201205706), (760, 169436384), (832, 154773620), (988, 130335680), (1040, 123818896), (1216, 105897740), (1235, 104268544), (1280, 100602853), (1520, 84718192), (1664, 77386810), (1976, 65167840), (2080, 61909448), (2432, 52948870), (2470, 52134272), (3040, 42359096), (3328, 38693405), (3952, 32583920), (4160, 30954724), (4864, 26474435), (4940, 26067136), (6080, 21179548), (7904, 16291960), (8320, 15477362), (9880, 13033568), (12160, 10589774), (15808, 8145980), (16640, 7738681), (19760, 6516784), (24320, 5294887), (31616, 4072990), (39520, 3258392), (63232, 2036495), (79040, 1629196), (158080, 814598), (316160, 407299)]