8139439360

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{509}}^1$

素因数の和:605

約数の個数: 216

約数和(自身を含む): 21738001320

約数和(自身を除く): 13598561960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 496, 509, 520, 620, 640, 806, 832, 961, 992, 1018, 1040, 1240, 1280, 1612, 1664, 1922, 1984, 2015, 2036, 2080, 2480, 2545, 3224, 3328, 3844, 3968, 4030, 4072, 4160, 4805, 4960, 5090, 6448, 6617, 7688, 7936, 8060, 8144, 8320, 9610, 9920, 10180, 12493, 12896, 13234, 15376, 15779, 16120, 16288, 16640, 19220, 19840, 20360, 24986, 25792, 26468, 30752, 31558, 32240, 32576, 33085, 38440, 39680, 40720, 49972, 51584, 52936, 61504, 62465, 63116, 64480, 65152, 66170, 76880, 78895, 81440, 99944, 103168, 105872, 123008, 124930, 126232, 128960, 130304, 132340, 153760, 157790, 162880, 199888, 205127, 211744, 246016, 249860, 252464, 257920, 264680, 307520, 315580, 325760, 399776, 410254, 423488, 489149, 499720, 504928, 515840, 529360, 615040, 631160, 651520, 799552, 820508, 846976, 978298, 999440, 1009856, 1025635, 1058720, 1230080, 1262320, 1599104, 1641016, 1693952, 1956596, 1998880, 2019712, 2051270, 2117440, 2445745, 2524640, 3198208, 3282032, 3913192, 3997760, 4039424, 4102540, 4234880, 4891490, 5049280, 6358937, 6564064, 7826384, 7995520, 8205080, 8469760, 9782980, 10098560, 12717874, 13128128, 15652768, 15991040, 16410160, 19565960, 20197120, 25435748, 26256256, 31305536, 31794685, 32820320, 39131920, 50871496, 52512512, 62611072, 63589370, 65640640, 78263840, 101742992, 125222144, 127178740, 131281280, 156527680, 203485984, 254357480, 262562560, 313055360, 406971968, 508714960, 626110720, 813943936, 1017429920, 1627887872, 2034859840, 4069719680, 8139439360]

約数ペア:

[(1, 8139439360), (2, 4069719680), (4, 2034859840), (5, 1627887872), (8, 1017429920), (10, 813943936), (13, 626110720), (16, 508714960), (20, 406971968), (26, 313055360), (31, 262562560), (32, 254357480), (40, 203485984), (52, 156527680), (62, 131281280), (64, 127178740), (65, 125222144), (80, 101742992), (104, 78263840), (124, 65640640), (128, 63589370), (130, 62611072), (155, 52512512), (160, 50871496), (208, 39131920), (248, 32820320), (256, 31794685), (260, 31305536), (310, 26256256), (320, 25435748), (403, 20197120), (416, 19565960), (496, 16410160), (509, 15991040), (520, 15652768), (620, 13128128), (640, 12717874), (806, 10098560), (832, 9782980), (961, 8469760), (992, 8205080), (1018, 7995520), (1040, 7826384), (1240, 6564064), (1280, 6358937), (1612, 5049280), (1664, 4891490), (1922, 4234880), (1984, 4102540), (2015, 4039424), (2036, 3997760), (2080, 3913192), (2480, 3282032), (2545, 3198208), (3224, 2524640), (3328, 2445745), (3844, 2117440), (3968, 2051270), (4030, 2019712), (4072, 1998880), (4160, 1956596), (4805, 1693952), (4960, 1641016), (5090, 1599104), (6448, 1262320), (6617, 1230080), (7688, 1058720), (7936, 1025635), (8060, 1009856), (8144, 999440), (8320, 978298), (9610, 846976), (9920, 820508), (10180, 799552), (12493, 651520), (12896, 631160), (13234, 615040), (15376, 529360), (15779, 515840), (16120, 504928), (16288, 499720), (16640, 489149), (19220, 423488), (19840, 410254), (20360, 399776), (24986, 325760), (25792, 315580), (26468, 307520), (30752, 264680), (31558, 257920), (32240, 252464), (32576, 249860), (33085, 246016), (38440, 211744), (39680, 205127), (40720, 199888), (49972, 162880), (51584, 157790), (52936, 153760), (61504, 132340), (62465, 130304), (63116, 128960), (64480, 126232), (65152, 124930), (66170, 123008), (76880, 105872), (78895, 103168), (81440, 99944)]