287236460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2051689}}^1$

素因数の和:2051705

約数の個数: 24

約数和(自身を含む): 689367840

約数和(自身を除く): 402131380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2051689, 4103378, 8206756, 10258445, 14361823, 20516890, 28723646, 41033780, 57447292, 71809115, 143618230, 287236460]

約数ペア:

[(1, 287236460), (2, 143618230), (4, 71809115), (5, 57447292), (7, 41033780), (10, 28723646), (14, 20516890), (20, 14361823), (28, 10258445), (35, 8206756), (70, 4103378), (140, 2051689)]