205220457

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{239}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 330220800

約数和(自身を除く): 125000343

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 179, 239, 369, 533, 537, 717, 1599, 1611, 2151, 2327, 3107, 4797, 6981, 7339, 9321, 9799, 20943, 22017, 27963, 29397, 42781, 66051, 88191, 95407, 127387, 128343, 286221, 382161, 385029, 556153, 858663, 1146483, 1668459, 1754021, 5005377, 5262063, 15786189, 22802273, 68406819, 205220457]

約数ペア:

[(1, 205220457), (3, 68406819), (9, 22802273), (13, 15786189), (39, 5262063), (41, 5005377), (117, 1754021), (123, 1668459), (179, 1146483), (239, 858663), (369, 556153), (533, 385029), (537, 382161), (717, 286221), (1599, 128343), (1611, 127387), (2151, 95407), (2327, 88191), (3107, 66051), (4797, 42781), (6981, 29397), (7339, 27963), (9321, 22017), (9799, 20943)]