68984980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1481}}^1$

素因数の和:1644

約数の個数: 48

約数和(自身を含む): 154614096

約数和(自身を除く): 85629116

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 137, 170, 274, 340, 548, 685, 1370, 1481, 2329, 2740, 2962, 4658, 5924, 7405, 9316, 11645, 14810, 23290, 25177, 29620, 46580, 50354, 100708, 125885, 202897, 251770, 405794, 503540, 811588, 1014485, 2028970, 3449249, 4057940, 6898498, 13796996, 17246245, 34492490, 68984980]

約数ペア:

[(1, 68984980), (2, 34492490), (4, 17246245), (5, 13796996), (10, 6898498), (17, 4057940), (20, 3449249), (34, 2028970), (68, 1014485), (85, 811588), (137, 503540), (170, 405794), (274, 251770), (340, 202897), (548, 125885), (685, 100708), (1370, 50354), (1481, 46580), (2329, 29620), (2740, 25177), (2962, 23290), (4658, 14810), (5924, 11645), (7405, 9316)]