19954088

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1117}}^1$

素因数の和:1170

約数の個数: 64

約数和(自身を含む): 48297600

約数和(自身を除く): 28343512

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 29, 44, 56, 58, 77, 88, 116, 154, 203, 232, 308, 319, 406, 616, 638, 812, 1117, 1276, 1624, 2233, 2234, 2552, 4466, 4468, 7819, 8932, 8936, 12287, 15638, 17864, 24574, 31276, 32393, 49148, 62552, 64786, 86009, 98296, 129572, 172018, 226751, 259144, 344036, 356323, 453502, 688072, 712646, 907004, 1425292, 1814008, 2494261, 2850584, 4988522, 9977044, 19954088]

約数ペア:

[(1, 19954088), (2, 9977044), (4, 4988522), (7, 2850584), (8, 2494261), (11, 1814008), (14, 1425292), (22, 907004), (28, 712646), (29, 688072), (44, 453502), (56, 356323), (58, 344036), (77, 259144), (88, 226751), (116, 172018), (154, 129572), (203, 98296), (232, 86009), (308, 64786), (319, 62552), (406, 49148), (616, 32393), (638, 31276), (812, 24574), (1117, 17864), (1276, 15638), (1624, 12287), (2233, 8936), (2234, 8932), (2552, 7819), (4466, 4468)]