81775120

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{907}}^1$

素因数の和:957

約数の個数: 120

約数和(自身を含む): 231038784

約数和(自身を除く): 149263664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 230, 245, 280, 322, 368, 392, 460, 490, 560, 644, 784, 805, 907, 920, 980, 1127, 1288, 1610, 1814, 1840, 1960, 2254, 2576, 3220, 3628, 3920, 4508, 4535, 5635, 6349, 6440, 7256, 9016, 9070, 11270, 12698, 12880, 14512, 18032, 18140, 20861, 22540, 25396, 31745, 36280, 41722, 44443, 45080, 50792, 63490, 72560, 83444, 88886, 90160, 101584, 104305, 126980, 146027, 166888, 177772, 208610, 222215, 253960, 292054, 333776, 355544, 417220, 444430, 507920, 584108, 711088, 730135, 834440, 888860, 1022189, 1168216, 1460270, 1668880, 1777720, 2044378, 2336432, 2920540, 3555440, 4088756, 5110945, 5841080, 8177512, 10221890, 11682160, 16355024, 20443780, 40887560, 81775120]

約数ペア:

[(1, 81775120), (2, 40887560), (4, 20443780), (5, 16355024), (7, 11682160), (8, 10221890), (10, 8177512), (14, 5841080), (16, 5110945), (20, 4088756), (23, 3555440), (28, 2920540), (35, 2336432), (40, 2044378), (46, 1777720), (49, 1668880), (56, 1460270), (70, 1168216), (80, 1022189), (92, 888860), (98, 834440), (112, 730135), (115, 711088), (140, 584108), (161, 507920), (184, 444430), (196, 417220), (230, 355544), (245, 333776), (280, 292054), (322, 253960), (368, 222215), (392, 208610), (460, 177772), (490, 166888), (560, 146027), (644, 126980), (784, 104305), (805, 101584), (907, 90160), (920, 88886), (980, 83444), (1127, 72560), (1288, 63490), (1610, 50792), (1814, 45080), (1840, 44443), (1960, 41722), (2254, 36280), (2576, 31745), (3220, 25396), (3628, 22540), (3920, 20861), (4508, 18140), (4535, 18032), (5635, 14512), (6349, 12880), (6440, 12698), (7256, 11270), (9016, 9070)]