989968336

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{124493}}^1$

素因数の和:124579

約数の個数: 40

約数和(自身を含む): 2222964864

約数和(自身を除く): 1232996528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 3976, 7952, 124493, 248986, 497972, 871451, 995944, 1742902, 1991888, 3485804, 6971608, 8839003, 13943216, 17678006, 35356012, 61873021, 70712024, 123746042, 141424048, 247492084, 494984168, 989968336]

約数ペア:

[(1, 989968336), (2, 494984168), (4, 247492084), (7, 141424048), (8, 123746042), (14, 70712024), (16, 61873021), (28, 35356012), (56, 17678006), (71, 13943216), (112, 8839003), (142, 6971608), (284, 3485804), (497, 1991888), (568, 1742902), (994, 995944), (1136, 871451), (1988, 497972), (3976, 248986), (7952, 124493)]