28239260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{201709}}^1$

素因数の和:201725

約数の個数: 24

約数和(自身を含む): 67774560

約数和(自身を除く): 39535300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 201709, 403418, 806836, 1008545, 1411963, 2017090, 2823926, 4034180, 5647852, 7059815, 14119630, 28239260]

約数ペア:

[(1, 28239260), (2, 14119630), (4, 7059815), (5, 5647852), (7, 4034180), (10, 2823926), (14, 2017090), (20, 1411963), (28, 1008545), (35, 806836), (70, 403418), (140, 201709)]