40988920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{146389}}^1$

素因数の和:146407

約数の個数: 32

約数和(自身を含む): 105400800

約数和(自身を除く): 64411880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 146389, 292778, 585556, 731945, 1024723, 1171112, 1463890, 2049446, 2927780, 4098892, 5123615, 5855560, 8197784, 10247230, 20494460, 40988920]

約数ペア:

[(1, 40988920), (2, 20494460), (4, 10247230), (5, 8197784), (7, 5855560), (8, 5123615), (10, 4098892), (14, 2927780), (20, 2049446), (28, 1463890), (35, 1171112), (40, 1024723), (56, 731945), (70, 585556), (140, 292778), (280, 146389)]