889877540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{719}}^1\times {\mathrm{3257}}^1$

素因数の和:4004

約数の個数: 48

約数和(自身を含む): 1970438400

約数和(自身を除く): 1080560860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 719, 1438, 2876, 3257, 3595, 6514, 7190, 13028, 13661, 14380, 16285, 27322, 32570, 54644, 61883, 65140, 68305, 123766, 136610, 247532, 273220, 309415, 618830, 1237660, 2341783, 4683566, 9367132, 11708915, 23417830, 44493877, 46835660, 88987754, 177975508, 222469385, 444938770, 889877540]

約数ペア:

[(1, 889877540), (2, 444938770), (4, 222469385), (5, 177975508), (10, 88987754), (19, 46835660), (20, 44493877), (38, 23417830), (76, 11708915), (95, 9367132), (190, 4683566), (380, 2341783), (719, 1237660), (1438, 618830), (2876, 309415), (3257, 273220), (3595, 247532), (6514, 136610), (7190, 123766), (13028, 68305), (13661, 65140), (14380, 61883), (16285, 54644), (27322, 32570)]