254324785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 383281920

約数和(自身を除く): 128957135

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 97, 143, 193, 209, 247, 485, 715, 965, 1045, 1067, 1235, 1261, 1843, 2123, 2509, 2717, 3667, 5335, 6305, 9215, 10615, 12545, 13585, 13871, 18335, 18721, 20273, 23959, 27599, 40337, 47671, 69355, 93605, 101365, 119795, 137995, 201685, 205931, 238355, 243373, 263549, 355699, 524381, 1029655, 1216865, 1317745, 1778495, 2621905, 2677103, 3912689, 4624087, 13385515, 19563445, 23120435, 50864957, 254324785]

約数ペア:

[(1, 254324785), (5, 50864957), (11, 23120435), (13, 19563445), (19, 13385515), (55, 4624087), (65, 3912689), (95, 2677103), (97, 2621905), (143, 1778495), (193, 1317745), (209, 1216865), (247, 1029655), (485, 524381), (715, 355699), (965, 263549), (1045, 243373), (1067, 238355), (1235, 205931), (1261, 201685), (1843, 137995), (2123, 119795), (2509, 101365), (2717, 93605), (3667, 69355), (5335, 47671), (6305, 40337), (9215, 27599), (10615, 23959), (12545, 20273), (13585, 18721), (13871, 18335)]