128086840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:485

約数の個数: 128

約数和(自身を含む): 354585600

約数和(自身を除く): 226498760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 71, 85, 119, 136, 140, 142, 170, 238, 280, 284, 340, 355, 379, 476, 497, 568, 595, 680, 710, 758, 952, 994, 1190, 1207, 1420, 1516, 1895, 1988, 2380, 2414, 2485, 2653, 2840, 3032, 3790, 3976, 4760, 4828, 4970, 5306, 6035, 6443, 7580, 8449, 9656, 9940, 10612, 12070, 12886, 13265, 15160, 16898, 19880, 21224, 24140, 25772, 26530, 26909, 32215, 33796, 42245, 45101, 48280, 51544, 53060, 53818, 64430, 67592, 84490, 90202, 106120, 107636, 128860, 134545, 168980, 180404, 188363, 215272, 225505, 257720, 269090, 337960, 360808, 376726, 451010, 457453, 538180, 753452, 902020, 914906, 941815, 1076360, 1506904, 1804040, 1829812, 1883630, 2287265, 3202171, 3659624, 3767260, 4574530, 6404342, 7534520, 9149060, 12808684, 16010855, 18298120, 25617368, 32021710, 64043420, 128086840]

約数ペア:

[(1, 128086840), (2, 64043420), (4, 32021710), (5, 25617368), (7, 18298120), (8, 16010855), (10, 12808684), (14, 9149060), (17, 7534520), (20, 6404342), (28, 4574530), (34, 3767260), (35, 3659624), (40, 3202171), (56, 2287265), (68, 1883630), (70, 1829812), (71, 1804040), (85, 1506904), (119, 1076360), (136, 941815), (140, 914906), (142, 902020), (170, 753452), (238, 538180), (280, 457453), (284, 451010), (340, 376726), (355, 360808), (379, 337960), (476, 269090), (497, 257720), (568, 225505), (595, 215272), (680, 188363), (710, 180404), (758, 168980), (952, 134545), (994, 128860), (1190, 107636), (1207, 106120), (1420, 90202), (1516, 84490), (1895, 67592), (1988, 64430), (2380, 53818), (2414, 53060), (2485, 51544), (2653, 48280), (2840, 45101), (3032, 42245), (3790, 33796), (3976, 32215), (4760, 26909), (4828, 26530), (4970, 25772), (5306, 24140), (6035, 21224), (6443, 19880), (7580, 16898), (8449, 15160), (9656, 13265), (9940, 12886), (10612, 12070)]