20128864

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3907}}^1$

素因数の和:3947

約数の個数: 48

約数和(自身を含む): 47271168

約数和(自身を除く): 27142304

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 224, 322, 368, 644, 736, 1288, 2576, 3907, 5152, 7814, 15628, 27349, 31256, 54698, 62512, 89861, 109396, 125024, 179722, 218792, 359444, 437584, 629027, 718888, 875168, 1258054, 1437776, 2516108, 2875552, 5032216, 10064432, 20128864]

約数ペア:

[(1, 20128864), (2, 10064432), (4, 5032216), (7, 2875552), (8, 2516108), (14, 1437776), (16, 1258054), (23, 875168), (28, 718888), (32, 629027), (46, 437584), (56, 359444), (92, 218792), (112, 179722), (161, 125024), (184, 109396), (224, 89861), (322, 62512), (368, 54698), (644, 31256), (736, 27349), (1288, 15628), (2576, 7814), (3907, 5152)]