139553920

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:534

約数の個数: 128

約数和(自身を含む): 373222080

約数和(自身を除く): 233668160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 43, 44, 55, 64, 80, 86, 88, 110, 128, 160, 172, 176, 215, 220, 320, 344, 352, 430, 440, 461, 473, 640, 688, 704, 860, 880, 922, 946, 1376, 1408, 1720, 1760, 1844, 1892, 2305, 2365, 2752, 3440, 3520, 3688, 3784, 4610, 4730, 5071, 5504, 6880, 7040, 7376, 7568, 9220, 9460, 10142, 13760, 14752, 15136, 18440, 18920, 19823, 20284, 25355, 27520, 29504, 30272, 36880, 37840, 39646, 40568, 50710, 59008, 60544, 73760, 75680, 79292, 81136, 99115, 101420, 147520, 151360, 158584, 162272, 198230, 202840, 218053, 295040, 302720, 317168, 324544, 396460, 405680, 436106, 634336, 649088, 792920, 811360, 872212, 1090265, 1268672, 1585840, 1622720, 1744424, 2180530, 2537344, 3171680, 3245440, 3488848, 4361060, 6343360, 6977696, 8722120, 12686720, 13955392, 17444240, 27910784, 34888480, 69776960, 139553920]

約数ペア:

[(1, 139553920), (2, 69776960), (4, 34888480), (5, 27910784), (8, 17444240), (10, 13955392), (11, 12686720), (16, 8722120), (20, 6977696), (22, 6343360), (32, 4361060), (40, 3488848), (43, 3245440), (44, 3171680), (55, 2537344), (64, 2180530), (80, 1744424), (86, 1622720), (88, 1585840), (110, 1268672), (128, 1090265), (160, 872212), (172, 811360), (176, 792920), (215, 649088), (220, 634336), (320, 436106), (344, 405680), (352, 396460), (430, 324544), (440, 317168), (461, 302720), (473, 295040), (640, 218053), (688, 202840), (704, 198230), (860, 162272), (880, 158584), (922, 151360), (946, 147520), (1376, 101420), (1408, 99115), (1720, 81136), (1760, 79292), (1844, 75680), (1892, 73760), (2305, 60544), (2365, 59008), (2752, 50710), (3440, 40568), (3520, 39646), (3688, 37840), (3784, 36880), (4610, 30272), (4730, 29504), (5071, 27520), (5504, 25355), (6880, 20284), (7040, 19823), (7376, 18920), (7568, 18440), (9220, 15136), (9460, 14752), (10142, 13760)]