20111255900

素因数分解:

$2^2\times 5^2\times {\mathrm{1559}}^1\times {\mathrm{129001}}^1$

素因数の和:130574

約数の個数: 36

約数和(自身を含む): 43669757040

約数和(自身を除く): 23558501140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1559, 3118, 6236, 7795, 15590, 31180, 38975, 77950, 129001, 155900, 258002, 516004, 645005, 1290010, 2580020, 3225025, 6450050, 12900100, 201112559, 402225118, 804450236, 1005562795, 2011125590, 4022251180, 5027813975, 10055627950, 20111255900]

約数ペア:

[(1, 20111255900), (2, 10055627950), (4, 5027813975), (5, 4022251180), (10, 2011125590), (20, 1005562795), (25, 804450236), (50, 402225118), (100, 201112559), (1559, 12900100), (3118, 6450050), (6236, 3225025), (7795, 2580020), (15590, 1290010), (31180, 645005), (38975, 516004), (77950, 258002), (129001, 155900)]