51647225

素因数分解:

$5^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{317}}^1$

素因数の和:367

約数の個数: 48

約数和(自身を含む): 78864000

約数和(自身を除く): 27216775

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 317, 343, 475, 665, 931, 1225, 1585, 1715, 2219, 3325, 4655, 6023, 6517, 7925, 8575, 11095, 15533, 23275, 30115, 32585, 42161, 55475, 77665, 108731, 150575, 162925, 210805, 295127, 388325, 543655, 1054025, 1475635, 2065889, 2718275, 7378175, 10329445, 51647225]

約数ペア:

[(1, 51647225), (5, 10329445), (7, 7378175), (19, 2718275), (25, 2065889), (35, 1475635), (49, 1054025), (95, 543655), (133, 388325), (175, 295127), (245, 210805), (317, 162925), (343, 150575), (475, 108731), (665, 77665), (931, 55475), (1225, 42161), (1585, 32585), (1715, 30115), (2219, 23275), (3325, 15533), (4655, 11095), (6023, 8575), (6517, 7925)]