214912775

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:465

約数の個数: 72

約数和(自身を含む): 347321520

約数和(自身を除く): 132408745

約数列:

[1, 5, 7, 11, 25, 35, 41, 49, 55, 77, 175, 205, 245, 275, 287, 385, 389, 451, 539, 1025, 1225, 1435, 1925, 1945, 2009, 2255, 2695, 2723, 3157, 4279, 7175, 9725, 10045, 11275, 13475, 13615, 15785, 15949, 19061, 21395, 22099, 29953, 50225, 68075, 78925, 79745, 95305, 106975, 110495, 111643, 149765, 175439, 209671, 398725, 476525, 552475, 558215, 748825, 781501, 877195, 1048355, 1228073, 2791075, 3907505, 4385975, 5241775, 6140365, 8596511, 19537525, 30701825, 42982555, 214912775]

約数ペア:

[(1, 214912775), (5, 42982555), (7, 30701825), (11, 19537525), (25, 8596511), (35, 6140365), (41, 5241775), (49, 4385975), (55, 3907505), (77, 2791075), (175, 1228073), (205, 1048355), (245, 877195), (275, 781501), (287, 748825), (385, 558215), (389, 552475), (451, 476525), (539, 398725), (1025, 209671), (1225, 175439), (1435, 149765), (1925, 111643), (1945, 110495), (2009, 106975), (2255, 95305), (2695, 79745), (2723, 78925), (3157, 68075), (4279, 50225), (7175, 29953), (9725, 22099), (10045, 21395), (11275, 19061), (13475, 15949), (13615, 15785)]