20765080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74161}}^1$

素因数の和:74179

約数の個数: 32

約数和(自身を含む): 53396640

約数和(自身を除く): 32631560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74161, 148322, 296644, 370805, 519127, 593288, 741610, 1038254, 1483220, 2076508, 2595635, 2966440, 4153016, 5191270, 10382540, 20765080]

約数ペア:

[(1, 20765080), (2, 10382540), (4, 5191270), (5, 4153016), (7, 2966440), (8, 2595635), (10, 2076508), (14, 1483220), (20, 1038254), (28, 741610), (35, 593288), (40, 519127), (56, 370805), (70, 296644), (140, 148322), (280, 74161)]