20087685940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1965527}}^1$

素因数の和:1965616

約数の個数: 48

約数和(自身を含む): 48870888192

約数和(自身を除く): 28783202252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 5110, 10220, 1965527, 3931054, 7862108, 9827635, 13758689, 19655270, 27517378, 39310540, 55034756, 68793445, 137586890, 143483471, 275173780, 286966942, 573933884, 717417355, 1004384297, 1434834710, 2008768594, 2869669420, 4017537188, 5021921485, 10043842970, 20087685940]

約数ペア:

[(1, 20087685940), (2, 10043842970), (4, 5021921485), (5, 4017537188), (7, 2869669420), (10, 2008768594), (14, 1434834710), (20, 1004384297), (28, 717417355), (35, 573933884), (70, 286966942), (73, 275173780), (140, 143483471), (146, 137586890), (292, 68793445), (365, 55034756), (511, 39310540), (730, 27517378), (1022, 19655270), (1460, 13758689), (2044, 9827635), (2555, 7862108), (5110, 3931054), (10220, 1965527)]