638861912

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{8009}}^1$

素因数の和:8100

約数の個数: 48

約数和(自身を含む): 1319247000

約数和(自身を除く): 680385088

約数列:

[1, 2, 4, 8, 13, 26, 52, 59, 104, 118, 169, 236, 338, 472, 676, 767, 1352, 1534, 3068, 6136, 8009, 9971, 16018, 19942, 32036, 39884, 64072, 79768, 104117, 208234, 416468, 472531, 832936, 945062, 1353521, 1890124, 2707042, 3780248, 5414084, 6142903, 10828168, 12285806, 24571612, 49143224, 79857739, 159715478, 319430956, 638861912]

約数ペア:

[(1, 638861912), (2, 319430956), (4, 159715478), (8, 79857739), (13, 49143224), (26, 24571612), (52, 12285806), (59, 10828168), (104, 6142903), (118, 5414084), (169, 3780248), (236, 2707042), (338, 1890124), (472, 1353521), (676, 945062), (767, 832936), (1352, 472531), (1534, 416468), (3068, 208234), (6136, 104117), (8009, 79768), (9971, 64072), (16018, 39884), (19942, 32036)]