123714640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{220919}}^1$

素因数の和:220939

約数の個数: 40

約数和(自身を含む): 328728960

約数和(自身を除く): 205014320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 220919, 441838, 883676, 1104595, 1546433, 1767352, 2209190, 3092866, 3534704, 4418380, 6185732, 7732165, 8836760, 12371464, 15464330, 17673520, 24742928, 30928660, 61857320, 123714640]

約数ペア:

[(1, 123714640), (2, 61857320), (4, 30928660), (5, 24742928), (7, 17673520), (8, 15464330), (10, 12371464), (14, 8836760), (16, 7732165), (20, 6185732), (28, 4418380), (35, 3534704), (40, 3092866), (56, 2209190), (70, 1767352), (80, 1546433), (112, 1104595), (140, 883676), (280, 441838), (560, 220919)]