128728964

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:405

約数の個数: 96

約数和(自身を含む): 298722816

約数和(自身を除く): 169993852

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 71, 91, 119, 142, 182, 221, 238, 284, 293, 364, 442, 476, 497, 586, 884, 923, 994, 1172, 1207, 1547, 1846, 1988, 2051, 2414, 3094, 3692, 3809, 4102, 4828, 4981, 6188, 6461, 7618, 8204, 8449, 9962, 12922, 15236, 15691, 16898, 19924, 20803, 25844, 26663, 31382, 33796, 34867, 41606, 53326, 62764, 64753, 69734, 83212, 106652, 109837, 129506, 139468, 145621, 219674, 259012, 270439, 291242, 353651, 439348, 453271, 540878, 582484, 707302, 906542, 1081756, 1414604, 1813084, 1893073, 2475557, 3786146, 4597463, 4951114, 7572292, 9194926, 9902228, 18389852, 32182241, 64364482, 128728964]

約数ペア:

[(1, 128728964), (2, 64364482), (4, 32182241), (7, 18389852), (13, 9902228), (14, 9194926), (17, 7572292), (26, 4951114), (28, 4597463), (34, 3786146), (52, 2475557), (68, 1893073), (71, 1813084), (91, 1414604), (119, 1081756), (142, 906542), (182, 707302), (221, 582484), (238, 540878), (284, 453271), (293, 439348), (364, 353651), (442, 291242), (476, 270439), (497, 259012), (586, 219674), (884, 145621), (923, 139468), (994, 129506), (1172, 109837), (1207, 106652), (1547, 83212), (1846, 69734), (1988, 64753), (2051, 62764), (2414, 53326), (3094, 41606), (3692, 34867), (3809, 33796), (4102, 31382), (4828, 26663), (4981, 25844), (6188, 20803), (6461, 19924), (7618, 16898), (8204, 15691), (8449, 15236), (9962, 12922)]