20087840

素因数分解:

$2^5\times 5^1\times {\mathrm{223}}^1\times {\mathrm{563}}^1$

素因数の和:801

約数の個数: 48

約数和(自身を含む): 47755008

約数和(自身を除く): 27667168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 223, 446, 563, 892, 1115, 1126, 1784, 2230, 2252, 2815, 3568, 4460, 4504, 5630, 7136, 8920, 9008, 11260, 17840, 18016, 22520, 35680, 45040, 90080, 125549, 251098, 502196, 627745, 1004392, 1255490, 2008784, 2510980, 4017568, 5021960, 10043920, 20087840]

約数ペア:

[(1, 20087840), (2, 10043920), (4, 5021960), (5, 4017568), (8, 2510980), (10, 2008784), (16, 1255490), (20, 1004392), (32, 627745), (40, 502196), (80, 251098), (160, 125549), (223, 90080), (446, 45040), (563, 35680), (892, 22520), (1115, 18016), (1126, 17840), (1784, 11260), (2230, 9008), (2252, 8920), (2815, 7136), (3568, 5630), (4460, 4504)]