20506160

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1871}}^1$

素因数の和:2021

約数の個数: 40

約数和(自身を含む): 48050496

約数和(自身を除く): 27544336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 1871, 2192, 2740, 3742, 5480, 7484, 9355, 10960, 14968, 18710, 29936, 37420, 74840, 149680, 256327, 512654, 1025308, 1281635, 2050616, 2563270, 4101232, 5126540, 10253080, 20506160]

約数ペア:

[(1, 20506160), (2, 10253080), (4, 5126540), (5, 4101232), (8, 2563270), (10, 2050616), (16, 1281635), (20, 1025308), (40, 512654), (80, 256327), (137, 149680), (274, 74840), (548, 37420), (685, 29936), (1096, 18710), (1370, 14968), (1871, 10960), (2192, 9355), (2740, 7484), (3742, 5480)]