78219680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{907}}^1$

素因数の和:947

約数の個数: 144

約数和(自身を含む): 234765216

約数和(自身を除く): 156545536

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 245, 280, 308, 352, 385, 392, 440, 490, 539, 560, 616, 770, 784, 880, 907, 980, 1078, 1120, 1232, 1540, 1568, 1760, 1814, 1960, 2156, 2464, 2695, 3080, 3628, 3920, 4312, 4535, 5390, 6160, 6349, 7256, 7840, 8624, 9070, 9977, 10780, 12320, 12698, 14512, 17248, 18140, 19954, 21560, 25396, 29024, 31745, 36280, 39908, 43120, 44443, 49885, 50792, 63490, 69839, 72560, 79816, 86240, 88886, 99770, 101584, 126980, 139678, 145120, 159632, 177772, 199540, 203168, 222215, 253960, 279356, 319264, 349195, 355544, 399080, 444430, 488873, 507920, 558712, 698390, 711088, 798160, 888860, 977746, 1015840, 1117424, 1396780, 1422176, 1596320, 1777720, 1955492, 2234848, 2444365, 2793560, 3555440, 3910984, 4888730, 5587120, 7110880, 7821968, 9777460, 11174240, 15643936, 19554920, 39109840, 78219680]

約数ペア:

[(1, 78219680), (2, 39109840), (4, 19554920), (5, 15643936), (7, 11174240), (8, 9777460), (10, 7821968), (11, 7110880), (14, 5587120), (16, 4888730), (20, 3910984), (22, 3555440), (28, 2793560), (32, 2444365), (35, 2234848), (40, 1955492), (44, 1777720), (49, 1596320), (55, 1422176), (56, 1396780), (70, 1117424), (77, 1015840), (80, 977746), (88, 888860), (98, 798160), (110, 711088), (112, 698390), (140, 558712), (154, 507920), (160, 488873), (176, 444430), (196, 399080), (220, 355544), (224, 349195), (245, 319264), (280, 279356), (308, 253960), (352, 222215), (385, 203168), (392, 199540), (440, 177772), (490, 159632), (539, 145120), (560, 139678), (616, 126980), (770, 101584), (784, 99770), (880, 88886), (907, 86240), (980, 79816), (1078, 72560), (1120, 69839), (1232, 63490), (1540, 50792), (1568, 49885), (1760, 44443), (1814, 43120), (1960, 39908), (2156, 36280), (2464, 31745), (2695, 29024), (3080, 25396), (3628, 21560), (3920, 19954), (4312, 18140), (4535, 17248), (5390, 14512), (6160, 12698), (6349, 12320), (7256, 10780), (7840, 9977), (8624, 9070)]