20518512

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{773}}^1$

素因数の和:870

約数の個数: 80

約数和(自身を含む): 61424640

約数和(自身を除く): 40906128

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 79, 84, 112, 158, 168, 237, 316, 336, 474, 553, 632, 773, 948, 1106, 1264, 1546, 1659, 1896, 2212, 2319, 3092, 3318, 3792, 4424, 4638, 5411, 6184, 6636, 8848, 9276, 10822, 12368, 13272, 16233, 18552, 21644, 26544, 32466, 37104, 43288, 61067, 64932, 86576, 122134, 129864, 183201, 244268, 259728, 366402, 427469, 488536, 732804, 854938, 977072, 1282407, 1465608, 1709876, 2564814, 2931216, 3419752, 5129628, 6839504, 10259256, 20518512]

約数ペア:

[(1, 20518512), (2, 10259256), (3, 6839504), (4, 5129628), (6, 3419752), (7, 2931216), (8, 2564814), (12, 1709876), (14, 1465608), (16, 1282407), (21, 977072), (24, 854938), (28, 732804), (42, 488536), (48, 427469), (56, 366402), (79, 259728), (84, 244268), (112, 183201), (158, 129864), (168, 122134), (237, 86576), (316, 64932), (336, 61067), (474, 43288), (553, 37104), (632, 32466), (773, 26544), (948, 21644), (1106, 18552), (1264, 16233), (1546, 13272), (1659, 12368), (1896, 10822), (2212, 9276), (2319, 8848), (3092, 6636), (3318, 6184), (3792, 5411), (4424, 4638)]