19874912

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{337}}^1$

素因数の和:463

約数の個数: 48

約数和(自身を含む): 41736240

約数和(自身を除く): 21861328

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 97, 152, 194, 304, 337, 388, 608, 674, 776, 1348, 1552, 1843, 2696, 3104, 3686, 5392, 6403, 7372, 10784, 12806, 14744, 25612, 29488, 32689, 51224, 58976, 65378, 102448, 130756, 204896, 261512, 523024, 621091, 1046048, 1242182, 2484364, 4968728, 9937456, 19874912]

約数ペア:

[(1, 19874912), (2, 9937456), (4, 4968728), (8, 2484364), (16, 1242182), (19, 1046048), (32, 621091), (38, 523024), (76, 261512), (97, 204896), (152, 130756), (194, 102448), (304, 65378), (337, 58976), (388, 51224), (608, 32689), (674, 29488), (776, 25612), (1348, 14744), (1552, 12806), (1843, 10784), (2696, 7372), (3104, 6403), (3686, 5392)]