20757700

素因数分解:

$2^2\times 5^2\times {\mathrm{251}}^1\times {\mathrm{827}}^1$

素因数の和:1092

約数の個数: 36

約数和(自身を含む): 45278352

約数和(自身を除く): 24520652

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 251, 502, 827, 1004, 1255, 1654, 2510, 3308, 4135, 5020, 6275, 8270, 12550, 16540, 20675, 25100, 41350, 82700, 207577, 415154, 830308, 1037885, 2075770, 4151540, 5189425, 10378850, 20757700]

約数ペア:

[(1, 20757700), (2, 10378850), (4, 5189425), (5, 4151540), (10, 2075770), (20, 1037885), (25, 830308), (50, 415154), (100, 207577), (251, 82700), (502, 41350), (827, 25100), (1004, 20675), (1255, 16540), (1654, 12550), (2510, 8270), (3308, 6275), (4135, 5020)]