245842947

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:505

約数の個数: 72

約数和(自身を含む): 437486400

約数和(自身を除く): 191643453

約数列:

[1, 3, 7, 9, 21, 29, 47, 49, 63, 87, 141, 147, 203, 261, 329, 409, 423, 441, 609, 987, 1227, 1363, 1421, 1827, 2303, 2863, 2961, 3681, 4089, 4263, 6909, 8589, 9541, 11861, 12267, 12789, 19223, 20041, 20727, 25767, 28623, 35583, 57669, 60123, 66787, 83027, 85869, 106749, 134561, 173007, 180369, 200361, 249081, 403683, 557467, 581189, 601083, 747243, 941927, 1211049, 1672401, 1743567, 2825781, 3902269, 5017203, 5230701, 8477343, 11706807, 27315883, 35120421, 81947649, 245842947]

約数ペア:

[(1, 245842947), (3, 81947649), (7, 35120421), (9, 27315883), (21, 11706807), (29, 8477343), (47, 5230701), (49, 5017203), (63, 3902269), (87, 2825781), (141, 1743567), (147, 1672401), (203, 1211049), (261, 941927), (329, 747243), (409, 601083), (423, 581189), (441, 557467), (609, 403683), (987, 249081), (1227, 200361), (1363, 180369), (1421, 173007), (1827, 134561), (2303, 106749), (2863, 85869), (2961, 83027), (3681, 66787), (4089, 60123), (4263, 57669), (6909, 35583), (8589, 28623), (9541, 25767), (11861, 20727), (12267, 20041), (12789, 19223)]