20809716032

素因数分解:

$2^6\times 7^1\times {\mathrm{71}}^1\times {\mathrm{654229}}^1$

素因数の和:654319

約数の個数: 56

約数和(自身を含む): 47858232960

約数和(自身を除く): 27048516928

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 142, 224, 284, 448, 497, 568, 994, 1136, 1988, 2272, 3976, 4544, 7952, 15904, 31808, 654229, 1308458, 2616916, 4579603, 5233832, 9159206, 10467664, 18318412, 20935328, 36636824, 41870656, 46450259, 73273648, 92900518, 146547296, 185801036, 293094592, 325151813, 371602072, 650303626, 743204144, 1300607252, 1486408288, 2601214504, 2972816576, 5202429008, 10404858016, 20809716032]

約数ペア:

[(1, 20809716032), (2, 10404858016), (4, 5202429008), (7, 2972816576), (8, 2601214504), (14, 1486408288), (16, 1300607252), (28, 743204144), (32, 650303626), (56, 371602072), (64, 325151813), (71, 293094592), (112, 185801036), (142, 146547296), (224, 92900518), (284, 73273648), (448, 46450259), (497, 41870656), (568, 36636824), (994, 20935328), (1136, 18318412), (1988, 10467664), (2272, 9159206), (3976, 5233832), (4544, 4579603), (7952, 2616916), (15904, 1308458), (31808, 654229)]