19190920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{68539}}^1$

素因数の和:68557

約数の個数: 32

約数和(自身を含む): 49348800

約数和(自身を除く): 30157880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 68539, 137078, 274156, 342695, 479773, 548312, 685390, 959546, 1370780, 1919092, 2398865, 2741560, 3838184, 4797730, 9595460, 19190920]

約数ペア:

[(1, 19190920), (2, 9595460), (4, 4797730), (5, 3838184), (7, 2741560), (8, 2398865), (10, 1919092), (14, 1370780), (20, 959546), (28, 685390), (35, 548312), (40, 479773), (56, 342695), (70, 274156), (140, 137078), (280, 68539)]