19649840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35089}}^1$

素因数の和:35109

約数の個数: 40

約数和(自身を含む): 52213920

約数和(自身を除く): 32564080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35089, 70178, 140356, 175445, 245623, 280712, 350890, 491246, 561424, 701780, 982492, 1228115, 1403560, 1964984, 2456230, 2807120, 3929968, 4912460, 9824920, 19649840]

約数ペア:

[(1, 19649840), (2, 9824920), (4, 4912460), (5, 3929968), (7, 2807120), (8, 2456230), (10, 1964984), (14, 1403560), (16, 1228115), (20, 982492), (28, 701780), (35, 561424), (40, 491246), (56, 350890), (70, 280712), (80, 245623), (112, 175445), (140, 140356), (280, 70178), (560, 35089)]