209717680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{389}}^1$

素因数の和:718

約数の個数: 80

約数和(自身を含む): 511842240

約数和(自身を除く): 302124560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 293, 368, 389, 460, 586, 778, 920, 1172, 1465, 1556, 1840, 1945, 2344, 2930, 3112, 3890, 4688, 5860, 6224, 6739, 7780, 8947, 11720, 13478, 15560, 17894, 23440, 26956, 31120, 33695, 35788, 44735, 53912, 67390, 71576, 89470, 107824, 113977, 134780, 143152, 178940, 227954, 269560, 357880, 455908, 539120, 569885, 715760, 911816, 1139770, 1823632, 2279540, 2621471, 4559080, 5242942, 9118160, 10485884, 13107355, 20971768, 26214710, 41943536, 52429420, 104858840, 209717680]

約数ペア:

[(1, 209717680), (2, 104858840), (4, 52429420), (5, 41943536), (8, 26214710), (10, 20971768), (16, 13107355), (20, 10485884), (23, 9118160), (40, 5242942), (46, 4559080), (80, 2621471), (92, 2279540), (115, 1823632), (184, 1139770), (230, 911816), (293, 715760), (368, 569885), (389, 539120), (460, 455908), (586, 357880), (778, 269560), (920, 227954), (1172, 178940), (1465, 143152), (1556, 134780), (1840, 113977), (1945, 107824), (2344, 89470), (2930, 71576), (3112, 67390), (3890, 53912), (4688, 44735), (5860, 35788), (6224, 33695), (6739, 31120), (7780, 26956), (8947, 23440), (11720, 17894), (13478, 15560)]