57451780

素因数分解:

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

素因数の和:40539

約数の個数: 24

約数和(自身を含む): 122351040

約数和(自身を除く): 64899260

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 40459, 80918, 161836, 202295, 404590, 809180, 2872589, 5745178, 11490356, 14362945, 28725890, 57451780]

約数ペア:

[(1, 57451780), (2, 28725890), (4, 14362945), (5, 11490356), (10, 5745178), (20, 2872589), (71, 809180), (142, 404590), (284, 202295), (355, 161836), (710, 80918), (1420, 40459)]