28725890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{40459}}^1$

素因数の和:40537

約数の個数: 16

約数和(自身を含む): 52436160

約数和(自身を除く): 23710270

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 40459, 80918, 202295, 404590, 2872589, 5745178, 14362945, 28725890]

約数ペア:

[(1, 28725890), (2, 14362945), (5, 5745178), (10, 2872589), (71, 404590), (142, 202295), (355, 80918), (710, 40459)]