20265344

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:451

約数の個数: 64

約数和(自身を含む): 45349200

約数和(自身を除く): 25083856

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 37, 44, 64, 74, 88, 128, 148, 176, 296, 352, 389, 407, 592, 704, 778, 814, 1184, 1408, 1556, 1628, 2368, 3112, 3256, 4279, 4736, 6224, 6512, 8558, 12448, 13024, 14393, 17116, 24896, 26048, 28786, 34232, 49792, 52096, 57572, 68464, 115144, 136928, 158323, 230288, 273856, 316646, 460576, 547712, 633292, 921152, 1266584, 1842304, 2533168, 5066336, 10132672, 20265344]

約数ペア:

[(1, 20265344), (2, 10132672), (4, 5066336), (8, 2533168), (11, 1842304), (16, 1266584), (22, 921152), (32, 633292), (37, 547712), (44, 460576), (64, 316646), (74, 273856), (88, 230288), (128, 158323), (148, 136928), (176, 115144), (296, 68464), (352, 57572), (389, 52096), (407, 49792), (592, 34232), (704, 28786), (778, 26048), (814, 24896), (1184, 17116), (1408, 14393), (1556, 13024), (1628, 12448), (2368, 8558), (3112, 6512), (3256, 6224), (4279, 4736)]