80042725

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^2\times {\mathrm{181}}^1$

素因数の和:243

約数の個数: 54

約数和(自身を含む): 122527314

約数和(自身を除く): 42484589

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 181, 245, 361, 475, 665, 905, 931, 1225, 1267, 1805, 2527, 3325, 3439, 4525, 4655, 6335, 8869, 9025, 12635, 17195, 17689, 23275, 24073, 31675, 44345, 63175, 65341, 85975, 88445, 120365, 168511, 221725, 326705, 442225, 457387, 601825, 842555, 1633525, 2286935, 3201709, 4212775, 11434675, 16008545, 80042725]

約数ペア:

[(1, 80042725), (5, 16008545), (7, 11434675), (19, 4212775), (25, 3201709), (35, 2286935), (49, 1633525), (95, 842555), (133, 601825), (175, 457387), (181, 442225), (245, 326705), (361, 221725), (475, 168511), (665, 120365), (905, 88445), (931, 85975), (1225, 65341), (1267, 63175), (1805, 44345), (2527, 31675), (3325, 24073), (3439, 23275), (4525, 17689), (4655, 17195), (6335, 12635), (8869, 9025)]