28483640

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1399}}^1$

素因数の和:1919

約数の個数: 32

約数和(自身を含む): 64260000

約数和(自身を除く): 35776360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 1399, 2036, 2545, 2798, 4072, 5090, 5596, 6995, 10180, 11192, 13990, 20360, 27980, 55960, 712091, 1424182, 2848364, 3560455, 5696728, 7120910, 14241820, 28483640]

約数ペア:

[(1, 28483640), (2, 14241820), (4, 7120910), (5, 5696728), (8, 3560455), (10, 2848364), (20, 1424182), (40, 712091), (509, 55960), (1018, 27980), (1399, 20360), (2036, 13990), (2545, 11192), (2798, 10180), (4072, 6995), (5090, 5596)]