1282142980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{7937}}^1$

素因数の和:8184

約数の個数: 48

約数和(自身を含む): 2772521136

約数和(自身を除く): 1490378156

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 197, 205, 394, 410, 788, 820, 985, 1970, 3940, 7937, 8077, 15874, 16154, 31748, 32308, 39685, 40385, 79370, 80770, 158740, 161540, 325417, 650834, 1301668, 1563589, 1627085, 3127178, 3254170, 6254356, 6508340, 7817945, 15635890, 31271780, 64107149, 128214298, 256428596, 320535745, 641071490, 1282142980]

約数ペア:

[(1, 1282142980), (2, 641071490), (4, 320535745), (5, 256428596), (10, 128214298), (20, 64107149), (41, 31271780), (82, 15635890), (164, 7817945), (197, 6508340), (205, 6254356), (394, 3254170), (410, 3127178), (788, 1627085), (820, 1563589), (985, 1301668), (1970, 650834), (3940, 325417), (7937, 161540), (8077, 158740), (15874, 80770), (16154, 79370), (31748, 40385), (32308, 39685)]