208733905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{421}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 280748160

約数和(自身を除く): 72014255

約数列:

[1, 5, 17, 19, 85, 95, 307, 323, 421, 1535, 1615, 2105, 5219, 5833, 7157, 7999, 26095, 29165, 35785, 39995, 99161, 129247, 135983, 495805, 646235, 679915, 2197199, 2455693, 10985995, 12278465, 41746781, 208733905]

約数ペア:

[(1, 208733905), (5, 41746781), (17, 12278465), (19, 10985995), (85, 2455693), (95, 2197199), (307, 679915), (323, 646235), (421, 495805), (1535, 135983), (1615, 129247), (2105, 99161), (5219, 39995), (5833, 35785), (7157, 29165), (7999, 26095)]