209905864

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{359}}^1$

素因数の和:622

約数の個数: 64

約数和(自身を含む): 461894400

約数和(自身を除く): 251988536

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 197, 212, 359, 371, 394, 424, 718, 742, 788, 1379, 1436, 1484, 1576, 2513, 2758, 2872, 2968, 5026, 5516, 10052, 10441, 11032, 19027, 20104, 20882, 38054, 41764, 70723, 73087, 76108, 83528, 133189, 141446, 146174, 152216, 266378, 282892, 292348, 495061, 532756, 565784, 584696, 990122, 1065512, 1980244, 3748319, 3960488, 7496638, 14993276, 26238233, 29986552, 52476466, 104952932, 209905864]

約数ペア:

[(1, 209905864), (2, 104952932), (4, 52476466), (7, 29986552), (8, 26238233), (14, 14993276), (28, 7496638), (53, 3960488), (56, 3748319), (106, 1980244), (197, 1065512), (212, 990122), (359, 584696), (371, 565784), (394, 532756), (424, 495061), (718, 292348), (742, 282892), (788, 266378), (1379, 152216), (1436, 146174), (1484, 141446), (1576, 133189), (2513, 83528), (2758, 76108), (2872, 73087), (2968, 70723), (5026, 41764), (5516, 38054), (10052, 20882), (10441, 20104), (11032, 19027)]