19780970752

素因数分解:

$2^8\times {\mathrm{239}}^1\times {\mathrm{271}}^1\times {\mathrm{1193}}^1$

素因数の和:1719

約数の個数: 72

約数和(自身を含む): 39829547520

約数和(自身を除く): 20048576768

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 239, 256, 271, 478, 542, 956, 1084, 1193, 1912, 2168, 2386, 3824, 4336, 4772, 7648, 8672, 9544, 15296, 17344, 19088, 30592, 34688, 38176, 61184, 64769, 69376, 76352, 129538, 152704, 259076, 285127, 305408, 323303, 518152, 570254, 646606, 1036304, 1140508, 1293212, 2072608, 2281016, 2586424, 4145216, 4562032, 5172848, 8290432, 9124064, 10345696, 16580864, 18248128, 20691392, 36496256, 41382784, 72992512, 77269417, 82765568, 154538834, 309077668, 618155336, 1236310672, 2472621344, 4945242688, 9890485376, 19780970752]

約数ペア:

[(1, 19780970752), (2, 9890485376), (4, 4945242688), (8, 2472621344), (16, 1236310672), (32, 618155336), (64, 309077668), (128, 154538834), (239, 82765568), (256, 77269417), (271, 72992512), (478, 41382784), (542, 36496256), (956, 20691392), (1084, 18248128), (1193, 16580864), (1912, 10345696), (2168, 9124064), (2386, 8290432), (3824, 5172848), (4336, 4562032), (4772, 4145216), (7648, 2586424), (8672, 2281016), (9544, 2072608), (15296, 1293212), (17344, 1140508), (19088, 1036304), (30592, 646606), (34688, 570254), (38176, 518152), (61184, 323303), (64769, 305408), (69376, 285127), (76352, 259076), (129538, 152704)]