20008576

素因数分解:

$2^7\times 7^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 46169280

約数和(自身を除く): 26160704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 137, 163, 224, 274, 326, 448, 548, 652, 896, 959, 1096, 1141, 1304, 1918, 2192, 2282, 2608, 3836, 4384, 4564, 5216, 7672, 8768, 9128, 10432, 15344, 17536, 18256, 20864, 22331, 30688, 36512, 44662, 61376, 73024, 89324, 122752, 146048, 156317, 178648, 312634, 357296, 625268, 714592, 1250536, 1429184, 2501072, 2858368, 5002144, 10004288, 20008576]

約数ペア:

[(1, 20008576), (2, 10004288), (4, 5002144), (7, 2858368), (8, 2501072), (14, 1429184), (16, 1250536), (28, 714592), (32, 625268), (56, 357296), (64, 312634), (112, 178648), (128, 156317), (137, 146048), (163, 122752), (224, 89324), (274, 73024), (326, 61376), (448, 44662), (548, 36512), (652, 30688), (896, 22331), (959, 20864), (1096, 18256), (1141, 17536), (1304, 15344), (1918, 10432), (2192, 9128), (2282, 8768), (2608, 7672), (3836, 5216), (4384, 4564)]