20553920

素因数分解:

$2^6\times 5^1\times {\mathrm{64231}}^1$

素因数の和:64248

約数の個数: 28

約数和(自身を含む): 48944784

約数和(自身を除く): 28390864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64231, 128462, 256924, 321155, 513848, 642310, 1027696, 1284620, 2055392, 2569240, 4110784, 5138480, 10276960, 20553920]

約数ペア:

[(1, 20553920), (2, 10276960), (4, 5138480), (5, 4110784), (8, 2569240), (10, 2055392), (16, 1284620), (20, 1027696), (32, 642310), (40, 513848), (64, 321155), (80, 256924), (160, 128462), (320, 64231)]