19148920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{68389}}^1$

素因数の和:68407

約数の個数: 32

約数和(自身を含む): 49240800

約数和(自身を除く): 30091880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 68389, 136778, 273556, 341945, 478723, 547112, 683890, 957446, 1367780, 1914892, 2393615, 2735560, 3829784, 4787230, 9574460, 19148920]

約数ペア:

[(1, 19148920), (2, 9574460), (4, 4787230), (5, 3829784), (7, 2735560), (8, 2393615), (10, 1914892), (14, 1367780), (20, 957446), (28, 683890), (35, 547112), (40, 478723), (56, 341945), (70, 273556), (140, 136778), (280, 68389)]