19815460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{141539}}^1$

素因数の和:141555

約数の個数: 24

約数和(自身を含む): 47557440

約数和(自身を除く): 27741980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 141539, 283078, 566156, 707695, 990773, 1415390, 1981546, 2830780, 3963092, 4953865, 9907730, 19815460]

約数ペア:

[(1, 19815460), (2, 9907730), (4, 4953865), (5, 3963092), (7, 2830780), (10, 1981546), (14, 1415390), (20, 990773), (28, 707695), (35, 566156), (70, 283078), (140, 141539)]