2123920

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:343

約数の個数: 40

約数和(自身を含む): 4999680

約数和(自身を除く): 2875760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 191, 278, 382, 556, 695, 764, 955, 1112, 1390, 1528, 1910, 2224, 2780, 3056, 3820, 5560, 7640, 11120, 15280, 26549, 53098, 106196, 132745, 212392, 265490, 424784, 530980, 1061960, 2123920]

約数ペア:

[(1, 2123920), (2, 1061960), (4, 530980), (5, 424784), (8, 265490), (10, 212392), (16, 132745), (20, 106196), (40, 53098), (80, 26549), (139, 15280), (191, 11120), (278, 7640), (382, 5560), (556, 3820), (695, 3056), (764, 2780), (955, 2224), (1112, 1910), (1390, 1528)]