81764478

素因数分解:

$2^1\times 3^4\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:263

約数の個数: 80

約数和(自身を含む): 190531440

約数和(自身を除く): 108766962

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 81, 89, 106, 107, 159, 162, 178, 214, 267, 318, 321, 477, 534, 642, 801, 954, 963, 1431, 1602, 1926, 2403, 2862, 2889, 4293, 4717, 4806, 5671, 5778, 7209, 8586, 8667, 9434, 9523, 11342, 14151, 14418, 17013, 17334, 19046, 28302, 28569, 34026, 42453, 51039, 57138, 84906, 85707, 102078, 127359, 153117, 171414, 254718, 257121, 306234, 382077, 459351, 504719, 514242, 764154, 771363, 918702, 1009438, 1514157, 1542726, 3028314, 4542471, 9084942, 13627413, 27254826, 40882239, 81764478]

約数ペア:

[(1, 81764478), (2, 40882239), (3, 27254826), (6, 13627413), (9, 9084942), (18, 4542471), (27, 3028314), (53, 1542726), (54, 1514157), (81, 1009438), (89, 918702), (106, 771363), (107, 764154), (159, 514242), (162, 504719), (178, 459351), (214, 382077), (267, 306234), (318, 257121), (321, 254718), (477, 171414), (534, 153117), (642, 127359), (801, 102078), (954, 85707), (963, 84906), (1431, 57138), (1602, 51039), (1926, 42453), (2403, 34026), (2862, 28569), (2889, 28302), (4293, 19046), (4717, 17334), (4806, 17013), (5671, 14418), (5778, 14151), (7209, 11342), (8586, 9523), (8667, 9434)]