20488840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26959}}^1$

素因数の和:26989

約数の個数: 32

約数和(自身を含む): 48528000

約数和(自身を除く): 28039160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 26959, 53918, 107836, 134795, 215672, 269590, 512221, 539180, 1024442, 1078360, 2048884, 2561105, 4097768, 5122210, 10244420, 20488840]

約数ペア:

[(1, 20488840), (2, 10244420), (4, 5122210), (5, 4097768), (8, 2561105), (10, 2048884), (19, 1078360), (20, 1024442), (38, 539180), (40, 512221), (76, 269590), (95, 215672), (152, 134795), (190, 107836), (380, 53918), (760, 26959)]