78903440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12809}}^1$

素因数の和:12840

約数の個数: 80

約数和(自身を含む): 228735360

約数和(自身を除く): 149831920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 12809, 25618, 51236, 64045, 89663, 102472, 128090, 140899, 179326, 204944, 256180, 281798, 358652, 448315, 512360, 563596, 704495, 717304, 896630, 986293, 1024720, 1127192, 1408990, 1434608, 1793260, 1972586, 2254384, 2817980, 3586520, 3945172, 4931465, 5635960, 7173040, 7890344, 9862930, 11271920, 15780688, 19725860, 39451720, 78903440]

約数ペア:

[(1, 78903440), (2, 39451720), (4, 19725860), (5, 15780688), (7, 11271920), (8, 9862930), (10, 7890344), (11, 7173040), (14, 5635960), (16, 4931465), (20, 3945172), (22, 3586520), (28, 2817980), (35, 2254384), (40, 1972586), (44, 1793260), (55, 1434608), (56, 1408990), (70, 1127192), (77, 1024720), (80, 986293), (88, 896630), (110, 717304), (112, 704495), (140, 563596), (154, 512360), (176, 448315), (220, 358652), (280, 281798), (308, 256180), (385, 204944), (440, 179326), (560, 140899), (616, 128090), (770, 102472), (880, 89663), (1232, 64045), (1540, 51236), (3080, 25618), (6160, 12809)]