28874440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103123}}^1$

素因数の和:103141

約数の個数: 32

約数和(自身を含む): 74249280

約数和(自身を除く): 45374840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 103123, 206246, 412492, 515615, 721861, 824984, 1031230, 1443722, 2062460, 2887444, 3609305, 4124920, 5774888, 7218610, 14437220, 28874440]

約数ペア:

[(1, 28874440), (2, 14437220), (4, 7218610), (5, 5774888), (7, 4124920), (8, 3609305), (10, 2887444), (14, 2062460), (20, 1443722), (28, 1031230), (35, 824984), (40, 721861), (56, 515615), (70, 412492), (140, 206246), (280, 103123)]