990804920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{3538589}}^1$

素因数の和:3538607

約数の個数: 32

約数和(自身を含む): 2547784800

約数和(自身を除く): 1556979880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 3538589, 7077178, 14154356, 17692945, 24770123, 28308712, 35385890, 49540246, 70771780, 99080492, 123850615, 141543560, 198160984, 247701230, 495402460, 990804920]

約数ペア:

[(1, 990804920), (2, 495402460), (4, 247701230), (5, 198160984), (7, 141543560), (8, 123850615), (10, 99080492), (14, 70771780), (20, 49540246), (28, 35385890), (35, 28308712), (40, 24770123), (56, 17692945), (70, 14154356), (140, 7077178), (280, 3538589)]